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It all Started with just a kite... With tuppence for paper and strings, you can have your own set of wings. With your feet on the ground, You’re a bird in flight! With your fist holding tight, to the string of your kite! Let’s go fly a kite Up to the highest height Let’s go fly a kite And send it soaring Up through the atmosphere Up where the air is clear Oh, let’s go fly a kite! When you send it flying up there, all at once you’re lighter than air! You can dance on the breeze, over houses and trees! With your fist holding tight, to the string your kite!

Robert B. Sherman, An ode to kites

The history of kites dates back to era of BC when the kite was first invented in China in 200BC. Kites were used in defense by the army generals to send signals and to measure the distance of enemy camps. Lawrence Hargrave designed box-kites which gave inspiration to create power driven aeroplanes.In 1902 the Wright brothers were successful in creating aviators on the principle of Kite.

Aero Club of IIST

From the Director’s Desk


t is with immense joy that I extend my heartfelt congratulations to the students who have started the club named “AeroClub� and have successfully made it a place for the students of IIST to try various innovative ideas that could furnish their engineering skills. Since its inception, the students have conducted many in-house workshops, talks and competitions which has improved the interaction of students across disciplines and also across batches. I sincerely hope, the club becomes a platform for building confidence of young and enthusiastic students of IIST and bring out the best of their innovative engineering skills. These students should be able to make a mark in various National and International competitions in the areas of science and technology. The club members deserve the credit for having taken enough effort to organize many programmes in this short period, since foundation, to promote realization of creative ideas and also to have a parallel channel of innovative learning. With a devoted set of students and faculty, I wish the club would flourish in a big way in the years to come as a place for holistic learning of technical skill development.

Dr. K. S. Dasgupta Director Indian Institute of Space Science and Technology


4 Aero Club of IIST

A message from Dean, Student Activities


eroclub - Which sets out with the objective of providing students an out of the academia experience, a rather holistic approach has had quite an impression on the students. The successful one year of it is a testimony to the above fact. As a Dean of the Students Activities, it gives me immense pleasure to applaud and appreciate the work of students (members) who have put in their extra energy for undertaking the club duties and activities. The club has been transcended into a platform for discovering and establishing the simplicity of science and technology and how it influenced the mankind through ages. It has also become a perfect pitch for the interaction of the young and the experienced, establishing a pool of knowledge and curiosity for the common good. It was around April, 2014 when the senior members came out with the idea of summer projects; I felt it really good as it was the first of its kind. I had a discussion with the summer fellows and after seeing the potential and enthusiasm of the members as well as the summer fellows, I was convinced to take this novel idea to the Director, IIST. During the summer, 2014, our former director Dr.B.N.Suresh visited the campus and showed keen interest for an interaction with the members of AeroClub. He appreciated the efforts of the AeroClub in bringing out different departments under the common roof of science. He gave good inputs to the Club. I wish the members and all the people affiliated with this entity success and also want to express my sincere desire to see that their activities progress in the near future to the best of their abilities. Dr. Kuruvilla Joseph Dean, Student Activities Indian Institute of Space Science and Technology

Aero Club of IIST


From the desk of founding HOD and Current HOD


congratulate the AeroClub for almost completing one year of significant activities. It is quite laudable that the founders of the Club, undeterred by the initial lack of resources and even official recognition, went ahead to organize a large number of very good programmes, like competitions, demonstrations, lectures, and internships, which drew very good participation. The Club has now formally come into being, with a charter and a set of bye-laws, and a room in D4. A new set of office bearers have taken over. I hope that the activities of every year becomes a new benchmark for the new team to improve upon.I wish the members and office bearers of AeroClub the very best for making the Club a popular platform in the campus for students to brainstorm their ideas and invent new things.

Dr. Kurien Issac Former HOD, Aerospace Engineering Dean, Intellectual Property Rights & Continuing Education


t’s a great pleasure in writing this note for the annual magazine released by AeroClub. This Club was formally inaugurated on 4th November, 2013 with Dr. Pradeep.P and Dr.Praveen Krishna as its mentors. AeroClub is intended to enrich the technical knowledge by exposing the young students with practical applications in the field of Science and Technology. It serves as a platform to explore the student’s latent talents and thereby enable them to come out with their innovative ideas and thoughts. Through organizing various competitions the students would get an opportunity to showcase their talents and experience the spirit of teamwork. I wish AeroClub all the success in their future endeavors.

Dr. A. Salih Head of Department, Aerospace Engineering


Aero Club of IIST

A message from Editors


t is heartening to see the development of the AeroClub which is still a couple of months far from its first anniversary. It is one of the initiatives which we feel as the biggest student driven initiative in this institute. We are glad to be a building block of the bigger efforts of members, summer interns and participants in bringing up the first annual magazine, “Udaan” Mach 1.0. In the beginning, our classmates who initiated the work were very enthusiastic and had many ideas. Some of them have come into being and some other need time to get implemented. The most satisfying thing is that their momentum has been accelerated manyfolds as the new members have inherited the “Genes of Determination” from the founding members. There has been a steady increase in the participation from student’s as well as from the faculties who guided the project’s student with wholeheartedly. We plan to have our first industrial visit to the facility of Brahmos-Aerospace in Trivandrum on Sep 20, 2014 with the AeroClub members. We also expect that we will come up with more such visits which will be open to all. There have been a lot of activities which were very fruitful and we expect some more interesting activities to come up in near future.

Editors: Rahul Tanwar Mohd. Ahmad Contributors: Akhil Jaiwal, Amit Kamboj, Divesh Soni, Gaurav Vaibhav Mofeez Alam, Priya Sarkar, Raman Chawla, Rajeev Verma, Shreya Mandal, Swapnil Kumar, Vibhuti Narayan, Summer Project Students, Participant of Various sessions Designer: Panchal Abhishek K.

{ Content } What ignited the spark?................08 Inception of AeroClub..................10 AeroClub by-laws........................12


The SpaceX

Keeping up the pace....................14 Summer Projects........................16 The case of the missing plane....26 Future plans..............................28 Members speak..........................30

Mars Orbiter Mission


Freshers’ viewpoint..................32 A concluding note by mentors..33

back cover Image courtesy:


The Higgs-Boson

8 Aero Club of IIST

What ignited the spark?


t all started when we geared up to participate in an inter collage technical event. We started putting things together for the events with whatever little knowledge we had and soon came to realize our limitations. This was our first hiccup. But we were able to overcome this with the help of our Faculty and Seniors who had experience in that field. Rajeev Verma We went to the competitions and 4th Year, BTech Aerospace had interaction with the students Engineering from different colleges. Though we were successful in some events, we Founding member of AeroClub. He observed that opponent teams had an has actively participated and won many competitions in technical advantage over us. We were amazed fests conducted across India. He is to see that their designs and approach skilled at designing models. He is was much ahead of ours. Later we inthe house captain of sports as well. teracted and came to know that they are regularly exposed to such kind of activities and ideas through technical clubs which were separate from their regular academic schedule. It was at this juncture that we truly felt for the need of such club in our college. Although with the very first step in IIST we were introduced to clubs such as

Aero Club of IIST

Astronomy club, which attracted us and gave us an essence of being in a Space Institution. Apart from the regular classes, clubs like these, especially Demo of the week, were very involving and fun to be a part of. Just like every fresher we enjoyed and learned many things from activities under these clubs. Although various other clubs were active at that point of time but no such club was there to cater the needs. So, we few (current fourth years) scratched our brains to cope up with this posed problem and then took initiative to form a new club (AeroClub) with the hope of making an interactive platform among students. During a car ride to the airfield for flying the RC models, we presented this idea of creating such platform to Prof. Pradeep which was well appreciated by him. It took a long halt there till we gathered around in 6th semester to come up with By-laws for officializing a club with the help of Prof. Pradeep, Prof. Praveen and Prof. Kurien Issac. This club is intended to enrich the technical knowledge of the students and expose them to practical applications especially in the field of aerospace engineering. It is aimed towards providing a common platform for all the students of IIST, where all of us can come together to share our knowledge and, along the way, have fun too.

Rahul Tanwar 4th Year, BTech Aerospace Engineering Currently a member of Propulsion team of in Vyom Mk-II Project

Gaurav Vaibhav 4th Year, BTech Aerospace Engineering He has actively participated in many competitions in different technical fests across India. He is in the Thermal Team of Vyom MkII, The souuding rocket of IIST. His main interests include designing and flying RC planes and other flight stuffs.


10 Aero Club of IIST

Inception of Aero Club


round one year ago, IIST witnessed the inception of AeroClub, the sparks being triggered by the cumulative efforts of a group of third year students and some sophomores with the assent of a couple of IIST’s faculty members. The pioneers were Gaurav Vaibhav, Rajeev Verma, Rahul Tanwar and Samar Manimaran, among the students, and Dr. Pradeep Kumar P., Dr. Kurien Isaac and Dr. Praveen Krishna, among the faculty members. AeroClub came into existence under the beta mode. The first event was organised on 17th August 2013 under the name of this Club was a rubber-powered ornithopter workshop. This one-day event was apparently the first leap towards the foundation of AeroClub; including a workshop-cum-competition whereby the participants were introduced with the concepts of birdflight and its mimicry in fabrication of an ornithopter followed by a simple competition to realise a functional ornithopter with the raw materials supplied to the participants. The workshop focussed on imparting the prior information and principles of flight mechanics with the help of CAD simulations of a simple ornithopter. It was accompanied with the real time demonstration of physical model of the rubberband powered ornithopter. The workshop intended to familiarize them with the basics of ornithopter before they become able to compete for ornithopter design among themselves. The workshop was held in two sessions: One in which a seminar was arranged on fundamental concepts and principles involved in the aerodynamics, discussing about the basic forces acting on the aeroplane and their cause of existence such as lift, drag, thrust etc. Some other daily life examples involving Aerodynamics were discussed such as Magnus effect and explained via Bernoulli’s equation. Later on an elaborate discussion on bird flight mechanism was held, explaining lift generation and propulsion. Another session paid attention on the construction details of rubber powered Ornithopter with a CATIA simulation of bird flapping in addition to flight demonstration of a working model. As a surprise to the organisers, the students’ participation was beyond expectations. An aggregate of 90 students, which comprised of freshmen and sophomores irrespective of their disciplines, showed up for the workshop. The response of students attending the seminar was energetic; some of them posed some really interesting questions. After the workshop, the ornithopter making competition was conducted on 24th August 2013. Around 14 teams (8 teams from 2nd year and 6 teams from 1st year) consisting of 4-6 members registered for it. All teams were given sufficient material and time (2- 3 hours) required for making Ornithopter. They gained experience of teamwork and time management within the stipulated

Aero Club of IIST

duration. They faced many difficulties which they came across when they tried to put the theory into practice during fabricating ornithopter but it was successfully coped with the assistance of organisers and volunteers. Out of 14, 11 teams finished the making of Ornithopter after which they were tested and competition was held on basis of ground rules presented to them beforehand. The participants were really very ecstatic as for some, it was their first hands on experience. As per the participants, this competition helped them to inculcate a sense of motivation and confidence. The students were very much inspired and excited when they saw their own model fly. It proved to be a mutual learning experience. On the whole it was a wonderful experience for both the organisers and the participating students. On the basis of the rules, the freshmen team of Pinaki Sarkar was declared as the winner. Later, they were felicitated by the Director, IIST on the day of formal inauguration of AeroClub. Later on 9 Sep 2013 a seminar was organised by the sophomores Divesh Soni and Aman Gupta on the basics of flight mechanics of a Boomerang. This session was mainly dedicated to the historical aspects, construction and aerodynamics of a boomerang. This was accompanied with a real time flight demonstration of the boomerang acquired from the Flight Mechnaics Lab, IIST. Another seminar was conducted on 21 Sep 2013 by Mohd. Ahmad and Tanmay Singhal to cover the aspects of rocket science. The rudimentary information about the rockets and launch vehicles i.e. propellants, engines, aerodynamics was explained with the help of examples cited from ISRO launch vehicles. The students were also confronted with the history of ISRO failures and successes in space industry along with the series of launch vehicles developed by ISRO in a chronological order. This session was also supported by a live demonstration of water rocket in front of Library, IIST. Finally, after a lot of efforts, the club was registered under the name of AeroClub on November 4, 2013 and approved by the Technical committee of IIST.


12 Aero Club of IIST

AeroClub By-Laws Objective: To provide a platform to develop students’ innovative ideas and talents in Aerospace Engineering and related areas. Functioning: a. The club will function under the directives of a Nominated/Elected club council (once in a year) adhering to the principles of clubs run by student body prescribed by the institute. b. A record of all the components and budget provided by the college will be kept and a record of people using the room intended for club room will also be kept by the AeroClub representatives. A set of rules and guidelines will be framed for such purposes. c. All the details of conducted workshops, training sessions, seminars, presentations etc. will be preserved for official purpose and future reference. List of attending students will also be maintained. d. Review meetings with team members, and faculty advisor once in a month and progress of working of the club, ways for improving its performance will be discussed. e. Yearly meeting with technical committee to present activities of the year, future plans, and submission of yearly report. f. Every year the By-laws will be reviewed and amended, if required, by the consensus of the club teams and members in the presence of faculty members and duly ratified by the HOD Membership: i. All IIST students are eligible to be the members of the AeroClub. ii. Bonafide IIST students wanting membership have to submit an application in a standard forwhich will be different for the existing and new members. Reasonable academic performance and interest in the club related activities, as evidenced by prior activities of the applicant, are the important criteria for selections. The applications will be scrutinized by the existing executive committee and recommendation for acceptance or rejection (mentioning the criteria used) will be made to the HoD, who along with the faculty mentors will take the final decision. The specific criteria used and the decision based on that will be final. iii. The selected members will have to pay an annual membership fee of Rs. 100/- to become club member for the existing academic year. Annual membership fee can be modified by the general body. iv. All the faculty members of the Aerospace Engineering are the honorary members of the club without voting rights. v. A member can be disqualified on special grounds, as recommended by the executive team and approved by the HOD. vi. Club membership will be completed within three weeks of the starting of the odd semester. Members will be allowed to join any time during the year after acceptance of the application and payment of the full annual fee.

Aero Club of IIST


For final decision


For advice and help

Executive Committee

For supervising activities

Task Teams

For organizing activities


Decision making body

Task Teams: The following task teams are envisaged currently-this can be modified by the general body of the members of the club. a) Club room operations and maintenance team b) Seminars Team c) Competitions Team d) Creativity/Publicity Team e) Administrative Team The task team will be elected by all the voting members, after a soap box. The returning officer will be appointed by the HOD. Executive committee: This consists of the President, Secretary, and one member each from all the task teams, other than the administrative team. The meeting of the executive committee will also include the two faculty mentors. The executive committee is responsible for the supervising the overall functioning of the task teams and for ensuring that the decisions made by the general body is correctly implemented. The executive committee will be chaired by the President and convened by the Secretary. Minutes of all the executive committee meetings will be sent to all the members, including the honorary members. Under special circumstances, the executive team can recommend relieving a task team member from the team membership, and this will be implemented on acceptance of HOD. The vacant position can be filled by election and if that is not possible, by nomination of a panel of three members by the executive committee from which the HOD will select one. Mentor: Two faculty mentors from a list proposed by the executive committee (excluding current mentors) will be selected by HOD. The role of the faculty mentor is to provide general guidance for the proper functioning of the club. They may also be present during the executive committee meetings to help resolve issues. The term of faculty mentors is three years.


14 Aero Club of IIST

Keeping up the pace


new semester was about to start and AeroClub came up with an idea to familiarise the students with MatLab, which is a general programming tool. This session kick started the AeroClub activity for the even semester of 2014. It covered topics ranging from very basic matrix computations, graph plotting to foundations of complex transformations and solving innovative problems. Creating and executing script and function files were also discussed. It was conducted in the programming lab. The Session received a huge response. The fact that there was no place left in programming lab and chairs had to be brought from outside to accommodate everyone, says it all. Students across all disciplines- B.Tech, M.Tech and PhD attended the session. The response we got for the MatLab session was huge. On the request of students, another session on MatLab was organised in the following week. This session was a continuation of the previous one and dealt with interesting topics like animating plots and Image processing using MatLab. The session was appreciated by everyone and AeroClub had started making a mark on students. Following the success of MatLab sessions, AeroClub gave an opportunity to a first year B.Tech student from Aerospace Engineering to come forward and hold a discussion on the topic ‘Evolution of Formula 1’. Session presented a timeline of technological development over last 60 years since the inception of Grand-Pix. Various aerodynamics concepts were discussed as simply as possible. Basic details about engine and suspension system used in a modern Formula 1 car were also discussed. The session was marked by a number of interesting discussions. It was well appreciated by students. The session ended with an inspiring message of “Learn, Create, and Innovate.” As Conscientia was approaching, AeroClub decided to organise a session to introduce the freshmens to the various events that are organised during the fest. Session covered basic tuning-techniques and trick to get an edge over others regarding the events and provided them with information of most of the major events in the festival which usually see a very less number of participation from the first year students. This session was organised to encourage the students to participate in events like RoboWars, Hydraulic Arm, Line follower and a few others. In this session not only the important concepts governing the various events were discussed but also a major focus was given to the actual realization of the machine or equipment. The session also included demonstration of a hydraulic arm, a Robot for RoboWars and a line follower. The part of the session dealing with line follower was addressed by a third year avionics student. This interactive demo session was one of

Aero Club of IIST

the reasons that Conscientia 2014 witnessed a very good participation from the first year. Apart from various workshops, lectures, demonstrations and presentations, AeroClub also organizes competitions and quizzes. These quizzes are planned to inspire students to think and try and answer some of the non-trivial phenomenon. It consisted of ten questions which addressed basic physics, mechanics, thermodynamics and aerodynamics. The winners of the quiz were announced in the next session and were awarded. The next session on ‘Introduction to Helicopters’ was conducted to highlight the major differences between an airplane and a helicopter. The history and evolution of helicopters were discussed together with the important terminologies of helicopter dynamics. The focus of the session was the detailed explanation of the “Swash Plate Mechanism”.Also, the session was followed by a demonstration of a small helicopter which was remote controlled. It hovered vertically and performed yawing and pitching motions. The last and the most interesting of all the sessions was “Space Fantasy” which presented two mind boggling concepts of “The Mars One- first one way trip to mars” and “The Space Elevator”. We also met one of the IISTians, Aman Waheed Khan, class of 2014, who is one of the participants of the Mars One mission. Currently he has been shortlisted for the 2nd round- interview round. The concept of space elevator was a very surprising concept to the audience which raised a lot of questions regarding its realisation. The space elevator was a concept given by prominent British science fiction writer, science writer and inventor, Sir Arthur C .Clark. The most common question posed by the audience was “When is this going to happen?” and the presenters quoted him “Just a few years after everybody stops laughing.” We concluded this session and semester with a lots of brain-storming concepts . The audience was encouraged and also got a chance to work on projects offered by AeroClub.


16 Aero Club of IIST

Summer Projects


fter spending a year at IIST, we gained a lot in terms of knowledge, both theoretical and practical. However, people believe that an year study is not sufficient to start with a project but AeroClub believes that it is the best time for students to start getting involved in challenging projects and came up with the concept of Aeroclub-summer projects. It was applauded by the faculties as well as received a great response from students. 55 students applied for the project out of which 25 from 1st year and 4 from 2nd year were selected to do 6 different projects during summer. Projects were entirely funded by Student Activity board and supported by college administration. Each group was allotted a mentor faculty who would guide them through the project. It was an excellent opportunity to personally interact with the faculties, learn new things and put your ideas into practice. We stayed in college for a month and worked on our project. It was fascinating; how things, which looked extremely simple in theory, can become headache when time comes to execute them. Learning was even more fun as there were no exams to haunt us. We were studying for the sake of learning alone, nothing else. There was professionalism and working in groups helped and made things easier for us. We asked a few students who were part of aero club-summer project about their experience as it is their feedback which will help us to do better next time. Manju Adhikary, part of Solar water absorbing refrigeration system, said, ‘It was really a great experience. The summer session has helped us to go beyond our curriculum and have a hands on experience with the practical aspect of what we learn in classes.We have learnt a lot- how to work in a team, how to systematically approach a problem and compensate with the practical difficulties. The support of the faculties and the seniors was overwhelming. I would like to work on more of such projects in future.’

Aero Club of IIST

Shiv Kumar, part of Parametric Study of Single-Stage Water Rocket, said, ‘This is really a very good experience for me. It is my first project in which I am doing something practical & learning a lot from it. Thanks to aero club coordinators for giving me this opportunity. But I want to suggest something, there should be a compulsory meeting every week where we can share our ideas and thoughts.’ Mayank Kumar, Design of two stage water rocket, said, ‘what looked fantastically simple was in reality a challenging task, realised difficulties in fabricating components. But the team efforts were commendable. We would like to thank the workshop personnel who patiently heeded our needs. A great effort by aero club for students.’ Malay, part of Glider and its trajectory measurement, said, ‘It was a very nice experience. Projects could have been more innovative. Waiting for the next time.’ Kiran, also a part of Glider project, said, ‘Learnt a lot and I feel motivated to work on more projects.’ Chandrakant Kaushal, part of RC Ornithopter, said, ‘It was a good learning experience and realised that material procurement can be really challenging at times. It was a good revision of things we learnt in first year.’ Rabi Narayan Rath, part of Innovative heat exchanger, said, ‘It was an awesome experience, being in avionics branch of engineering made it even more interesting.’ It was a fruitful summer vacation for students who will now enter into their sophomore year with lots of confidence, ideas and experience. Aero club will look forward to continue the trend with the support of the technical committee, college administration and students.


18 Aero Club of IIST

Manish Kumar Mishra 2nd Year BTech Aerospace Engineering

AeroClub summer project! Well, if I say that it is possibly the best thing I have experienced at IIST so far, I wouldn’t be wrong. It was an amazing experience and I am extremely thankful to AeroClub for the opportunity. My project was about designing an Ornithopter. We took lots of time to make a good design on paper, however it was expected as we were doing such kind of project for the first time. We really enjoyed working as there was no pressure whatsoever. I am extremely thankful to my mentor, Dr. Kurien Issac for making everything easy for us. Instead of teaching us, he used to discuss with us. This made us really comfortable. I thoroughly enjoyed working with my group mates. Our discussion used to brainstorm all of us in every sense. We were free to try out our ideas and during the manufacturing part, we could apply the knowledge we gained in first year. It was an enriching experience. And now I am extremely confident to take up more projects in future. It was a great learning curve for me. And I believe these are the kind of things which give us confidence to do big things in life. The concept of summer project has a long way to go and I am happy to be a part of it. Thank you.

Tejosmoy Saha 2nd Year BTech Aerospace Engineering

Aero club summer project was a very good platform to carry out the project titled Parameterization of single stage water rocket. The project was a very effective learning experience as we could gain knowledge while gaining on others with respect to some of our courses.This project helped us in implementing our learning which we had gone through in our earlier courses.The project gave us an opportunity to model the very basic of rocket trajectory which can probably be extrapolated while modelling real-time trajectory. We got a very good opportunity to interact with our faculty members who guided us effectively throughout the project duration.We faced many challenges during the project but it was more important to solve those problems which we gained from this project. The problems regarding the availability of components, which were important for our project, was frustrating as it wasted a lot of our time. We are still determined to carry on our project to the next level but this would require extensive help from aero-club.The whole experience was very good and any appreciation would be less

Aero Club of IIST

Adarsh Chandra Thakur 3rd Year BTech Aerospace Engineering

The project was – as the name went – stabilization of airplane using ardu-pilot. The project began with a lot of enthusiasm on making the whole airplane and then using the ardu-pilot to stabilize it. But later we realized its preferable the other way round as a small mistake in our settings of the ardu-pilot could give destructive results. So the ardu-pilot was studied and a bridge was used between the ardu-pilot and the receiver and transmitter- a software named Mission Planner. Then we had a hand of it by running it on a simulator – Flight Gear – where you can crash your plane and still walk away like a boss. The process was fairly simple in Mission Planner – selecting what we are going to use like a plane or a copter, then calibrating the remote control and the ardu-pilot itself. The final step was important – selecting the mode we were going to use. There were different modes but as our project topic went we had to stabilize it. Finally we went for the simulation and tested our settings. We tried other modes as well and other vehicles such as a copter and quadcopter to gain a better understanding of it. We also proposed to carry the project forward and fabricate our own tricopter and stabilize it using the ardu-pilot.

Sudheendra Raghavendra 2nd Year BTech Aerospace Engineering

The summer project was a great way of engaging students and helping them learn something in their area of interest. The topic chosen by us was ‘glider’. First, we learnt the basics of flight with the help of Dr. Sathish. He gave us a brief and basic idea on the glider which we were going to make. Then, we were helped by Rahul sir in building the glider. We learnt a lot about the procedure of building a glider. The institute and the Aero Club was instrumental in guiding us and providing us the materials at the right time. I sincerely hope that this venture is encouraged and more students are able to participate in the subsequent years.


The Space got Musked

Raman Chawla 3rd Year BTech Aerospace Engineering


n 2006, A private rocket and spacecraft developing company led by Elon Musk, began plowing the path for a new generation of spacecraft, with the launch of falcon 1 rocket. In June 2010, with the conclusion of space shuttle era around the corner, its successor, Falcon 9 stood upon the launch pad poised to make its grand entrance to aerospace world. The Falcon got its name from millennium Falcon- the space craft commanded by Han Solo in the original star wars movie. The ‘9’ comes from the nine first stage Merlin engines that propel the rocket. In December 2010, a reusable spacecraft designed to eventually carry crew cargo, was launched aboard the Falcon 9. It was then safely return back to ground, making SpaceX the first commercial company to effectively carry out the launch and recovery of a spacecraft. On another demonstration flight in May 2012, Dragon was delivered to orbit again by the falcon 9 to berth with the ISS, it was then opened by the crew and the supplies were emptied after that it returns safely to earth. The completed mission was a flawless display of Dragon’s capabilities. Recently one more SpaceX Falcon 9 rocket thundered to life and vaulted into space on 8th of this September, boosting a commercial communications satellite into orbit for AsiaSat Running 10 minutes late to give clouds more time to dissipate, the 68-metre-tall rocket’s nine Merlin 1D first-stage engines ignited with a brilliant burst of orange flame at 10:30 a.m. IST, throttled up to full thrust and quickly pushed the booster away from launch complex 40 at the Cape Canaveral Air Force Station. After an initially vertical climb out, the slender rocket tipped over to the east on computer command and raced toward space through thin clouds, rapidly shedding weight and accelerating as it consumed the first stage’s load of liquid oxygen and kerosene rocket fuel and within seconds it diminishes, it has a powerful presence. As Shakespeare wrote, “Though she be but little, she is fierce!” With a vision of reducing space transportation cost and enabling a human settlement on Red planet.In July 2014, SpaceX unveiled its Dragon Version 2 spacecraft, the next generation spacecraft designed to carry astronauts to Earth orbit and beyond. The spacecraft will be capable of carrying up to seven crewmembers, landing propulsively almost anywhere on Earth or any other Planet, and refuelling and flying again for rapid reusability. As a modern, 21st century manned spacecraft, Dragon v2 will revolutionize access to space. Dragon v2’s

robust thermal protection system is capable of interplanetary missions, in addition to flights to and from Earth orbit. With this pace SpaceX could be the next space station in America, as the reusable rocket grasshopper’s launch is attaining success. It should be able to land and be reused for another launch. SpaceX has ambitious plans for the future . Missions are already scheduled on its manifest through 2017 for several customers including the Canadian space agency, Asia satellite telecommunications and Thaicom. Manned flights may begin to low earth orbit (LEO) in 2015. With Determined company like SpaceX pushing forward with success after success, they demonstrate their competency and capability and create a standard for other commercial companies entering the race to live up to . SpaceX shows us an exciting snapshot of the future, as they continually prove to the world that determination can decide destiny. Source: The Author can be contacted at

Bon Voyage to the Red Planet


Gaurav Vaibhav 4th Year BTech Aerospace Engineering

ver millennia, human beings are fascinated and inspired by what happens across the universe. We wonder at the infinite glory and beauty of the cosmic panorama. The question of how life originated on Earth is still an unsolved mystery. Then the natural question comes whether life exist elsewhere in the solar system? Finding answers to these questions is a strong motivation for the exploration of solar system objects. Through technological developments, we began, only recently, to comprehend the complexity and challenges of probing a little beyond our own planet. The initial discoveries, which are the result of these new technological endeavours, point to the vast potential that exists for boundless knowledge and immense resource around our own solar system and beyond. After the successful Moon mission with Chandrayaan 1, it is natural for ISRO to think about planetary exploration beyond the Moon. In the quest for planetary exploration, Mars holds a very special position in view of the many similarities it has with Earth and because it holds the secrets of our past and the possibilities of our future. Mars is one of the four terrestrial planets, made of mostly silicates and metal, similar to Mercury, Venus and Earth. Mars is about one tenth of the mass of Earth and about half the size of Earth and has a thin atmosphere of ~6 milli bar, mostly made of CO2. The conditions on Mars appear pretty much hospitable as the planet is similar to Earth in many ways. Mars has the systems of air, water, ice and geology that all interact to produce the environment similar to Earth. Similar to Earth, Mars has seasons due to its tilt and climatic cycles. Though Mars is cold and dry at present, there are ample evidences that it was warm and wet in the past, conducive for life to thrive. It is important to understand when and how this transition occurred, which forms the main focus for Mars exploration. In order to concretize these concepts into an integrated and viable blueprint for undertaking systematic and planned missions to Mars, a Mars Mission Study Team was constituted by Chairman, ISRO with experts from all ISRO major centres. During the intense deliberations of the Study Team, it was discovered that we can have a highly elliptic orbital mission around Mars even using our proven PSLV launch system. Newton’s universal gravitation law (popularly known as inverse square law) that describes the principle for attraction of bodies provides sound basis for space travel. Kepler laws were independently generated empirical laws. Later it was proved that Kepler laws are consequence of inverse square law of Newton. Studying the motion of a spacecraft of a planetary mission involves gravitational attractions of multiple bodies. For example, an interplanetary mission to Mars involves three major gravity fields (Earth, Sun and Mars).Thus a mission to mars is a 4 body problem. Solving the governing equations for designing the transfer is very complex and involves highly numerical procedures. Analytical methodologies for the design of planetary travel are based on the principles of Hohmann transfer and Lambert transfer problems. In 1925, Hohmann discovered that the velocity impulse required for transferring a space vehicle from one orbit to another is minimum if the transfer involves 180 deg of transfer angle when the orbits are circular and coplanar. Another important concept that is very useful in planetary mission design is Lambert problem and is defined as the determination of an orbit (conic) connecting any two positions in space around a central body for a given flight time. Analytical methods of transfer trajectory design can be solved using patched conic technique. The

patched conic technique considers one body at a time. That is, in the close neighbourhood of Earth where Earth is dominant source of the acceleration on the space vehicle, only Earth and space vehicle are considered; from MSI (Mean Sphere of Influence) of Earth to MSI of Mars, only Sun is considered to be acting on the space vehicle; within MSI of Mars, Mars is the only body acting on the space vehicle. But, even within MSIs, the Sun will be acting on the space vehicle. So, Sun being major source of acceleration, it must be considered throughout in the design process. Neglecting Sun in the neighbourhood of target planets incur errors. Interplanetary Mission transfer involves three manoeuvres: (i) Trans-planetary injection (TPI) that enables the spacecraft escapes from the dominance of Earth and begin its journey towards Mars. (ii) Mid-course corrections that are needed to put the spacecraft on the right trajectory (iii) Planetary orbit insertion (POI) that puts the spacecraft around Mars. For an interplanetary mission, launch opportunities requiring minimum energy must be found. The sum of the impulses required in the above three phases has to be minimized. As pointed out earlier, the minimum energy launch opportunity occurs in the neighbourhood of Hohmann-like geometry. Because the Hohmann-like geometry repeats periodically (equivalent to a conjunction in astronomy) whose period is referred to as synodic period, minimum energy launch opportunity occurs every synodic period of the planet with Earth. For example, for Earth-Mars, a minimum energy opportunity occurs every 25 months. The current plan is for insertion into Mars orbit on 24 September 2014, approximately 2 days after the arrival of NASA’s MAVEN orbiter. MOM will be set on a highly elliptical orbit around Mars, with a period of 76.7 hours and a planned periapsis of 365 km and apoapsis of 80,000 km. It carries five payloads which are illustrated in the figure below. Hope, Mars Orbiter Mission becomes successful. Source: Planex volume 3 and 4 2013 Image courtesy: ISRO The Author can be contacted at

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Higgs Boson: The “Mass-iah”

Vibhuti Bhushan Jha 3rd Year BTech Physical Sciences


undredth of a billionth of a second has passed away since big bang and the ever pervading space is filled with a plethora of tightly packed particles running at the speed of light and there are no signs of a mysterious property called “mass”, but wait , the universe cools down and something dramatic happens. The universe is now permeated by a ‘field’, the Higgs field and this is manifested in the same way as the solidifying of water into ice. The particles, which earlier had been whizzing past at the speed of light start to slow down when they encounter this field. Imagine a situation; Popeye and Hulk are having a bath in the pool, water in the pool will offer low resistance to popeye than Hulk. The particles travelling in this field will feel the analogous resistance to their flow and thus their kinetic energy decreases and behold ladies and gentlemen the field thus provides a mass to the particle. This field far from being smooth and static rather is a wibbly- wobbly- timey- wimey- dynamic stuff made of the Higgs-Bosons which offer resistance to the flow of the particle and thus provide mass to it. If this hypothesis is true then the whole business is to create and observe these Higgs-Bosons, which the LHC attempts to provide an answer to. These Higgs-Bosons are unstable and break into other particles, studying which the physicists can answer some of the fundamental questions of physics. The standard model is a mathematical framework in particle physics, which explains that the forces in nature are a consequence of some form of symmetry and are transmitted by the carrier particles. One of the fundamental forces of nature, The Weak force must have mass less carrier particles, if symmetry is to be preserved. But we do observe these forces to be short ranged and had the carriers been mass less we would not have been here reading about them. The theory demands a mechanism by which the inherent symmetry is broken and a mass gets assigned to a particle. We can call this “Higgs field” as the destroyer of this symmetry. So if you think you are fat, this field is to be blamed!

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The mathematical beauty and elegance of the equations describing the particles is destroyed if one tries to incorporate the mass of the particles into the equations, which we indeed observe and the overall symmetry is thus broken. In the seminal paper by Higgs in PRL in 1964, he suggested to hold onto the pristine mathematical equations and consider them being manifested in an environment which provides resistance to the flow of the particles through it and thus provides mass to it. And thus started the search for “needle in a haystack” in the 9 billion $ LHC, which has employed and seen thousands of physicists devoting their whole professional careers in this area. There are different mechanisms by which a Higgs-Boson can be created, but it is once in a blue moon event, 1 in 10 billion collisions to be more mathematical. The two experiments at the LHC, the ATLAS and the CMS narrowed down the range of the mass of the Higgs-Boson to around 115-130 GeV and a euphoria started building at CERN in the month of June when CERN decided to announce the result of new collisions, with Higgs and his co-authors also arriving there. It provided a value to the mass of the “Higgs-Boson like” particle discovered at around 124GeV. As of 2014 announcements, the director of CERN confirmed that the new candidate for the Higgs-Boson particle is fitting in smoothly with the known tests and is set to become the first scalar particle of the nature. The search for the “Higgs-Boson” bears testimony to the excellence of the human kind in solving the long standing questions of physics for which Peter Higgs was ultimately awarded the Nobel Prize. The discoveries of new form of matters and forces have huge implications in solving the “bang” part of “the big bang”. The discovery of the Higgs particle is an astounding achievement of mathematics in unraveling the unknown. Be it the prediction of the anti-particles by Dirac or the work of other Theoretical Physicists, mathematics is at the heart of the theory. Image Courtesy: The Author can be contacted at


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The case of the missing plane

Amit Kamboj 4th Year BTech Aerospace Engineering


alaysia Airlines Flight 370, a Boeing 777-200, took off from Kuala Lumpur’s International Airport (KLIA) at 12.41am (MYT) on March 8 and was scheduled to land in Beijing at around 6.30am. It never arrived. The plane’s final verbal contact with the outside world came at 1.19am when one of its pilots told air traffic control: “Goodnight, Malaysian three-seven-zero” in a reply to a radar controller at Kuala Lumpur airport who said: “Malaysia three seven zero contact Ho Chi Min 120.9, good night”. By 1.22am the plane’s transponder had stopped functioning. Flight 370 disappeared from secondary radars as it passed over the Gulf of Thailand. After that the plane is believed to have looped west. Its last known position was picked up by military radar at 2.22am. By then Flight 370 was flying northwest over the Malacca Strait. What exactly happened after that is unclear, although investigators say they are convinced that at some point the plane turned south and flew on for more than 6 hours before eventually crashing into the southern Indian Ocean. Analysts are still studying around 1,000 possible flight paths that the flight might have taken to reach its final resting place, according to the Australian head of the search operation. Why the plane might have changed course and who was responsible remains mystery, although authorities have said they believe it was a “deliberate act” rather than the result of a technical malfunction. A multinational search effort, which became the largest and most expensive in history, began in the Gulf of Thailand and the South China Sea, where the flight’s signal was lost on secondary radar, and was soon extended to the Strait of Malacca and Andaman Sea. On 15 March, based on military radar data and transmissions between the aircraft and an Inmarsat satellite, investigators concluded that the aircraft had diverted from its intended course and headed west across the Malay Peninsula, then continued on a northern or southern track for around seven hours.

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The focus of the search shifted to the southern part of the Indian Ocean, west of Australia. In the first two weeks of April, aircraft and ships deployed equipment to listen for signals from the underwater locator beacons attached to the aircraft’s “black boxes”. Four unconfirmed signals were detected between 6 and 8 April near the time the beacons’ batteries were likely to have been exhausted. A robotic submarine searched the sea bed near the detected pings until 28 May, with no debris being found. An analysis of possible flight paths was conducted, identifying a 60,000 km2 (23,000 sq mi) search area, approximately 2,000 km (1,200 mi) west of Perth, Western Australia. The underwater search of this area is expected to begin in September 2014 and last up to 12 months at a cost of A$60 million (approximately US$56 million or €41 million). There has been no confirmation of any flight debris, and no crash site has been found, resulting in many unofficial theories about its disappearance. At the time of its disappearance, and if the presumption of a loss of all lives aboard can be verified, Flight 370 would have been the deadliest aviation incident in the history of Malaysia Airlines and the deadliest involving a Boeing 777. Flight 370 was surpassed in both regards 131 days later by the crash of another Malaysia Airlines Boeing 777—Flight 17—that was shot down over Ukraine on 17 July 2014, killing all 298 people aboard. A month after the disappearance, Malaysia Airlines’ chief executive Ahmad Jauhari Yahya acknowledged that ticket sales had declined but failed to provide specific details. This may partially result from the suspension of the airline’s advertisement campaigns following the disappearance. Mr. Ahmad stated in an interview with the Wall Street Journal that the airline’s “primary that we do take care of the families in terms of their emotional needs and also their financial needs. Malaysia Airlines retired the Flight 370 (MH370) flight number and replaced it with Flight 318 (MH318) beginning 14 March. This follows a common practice among airlines to rename flights following notorious accidents. The flight—Malaysia Airline’s second daily flight to Beijing—was later suspended beginning 2 May; according to insiders, this was due to lack of demand. With conspiracy theories continuing to circulate, no wreckage from the plane has ever been found. This has not only put another question mark on the reliability of air travel but also on the capabilities of all the present ‘complex’ technologies. 45 years it has been since man first stepped on the Moon and returned successfully. And yet we are unable to locate an aircraft on Earth. What is happening? May be the solution is not that simple. Or maybe the problem is not that complex. Or maybe we are missing an important link. Is there something that you can think of? May God give strength to the families of all those aboard! Sources: The Author can be contacted at


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Future plans


eroClub has already conducted informative seminars, workshops, talks, competitions etc since its inception in November 2013. Now, it is being planned to expand the wings of AeroClub and prepare it for flying higher so that it achieves bigger goals. In the efforts to do it, a new structure of AeroClub is put forth, in which different branches will open up. Working jointly, the branches will give opportunities to the students to explore more about a particular field and also contribute to that field. In short- learning accompanied with fun. Take for example Interships@AeroClub, this particular branch will focus on providing internships to students at renowned academic institutes, industries and research labs across the country and the globe. It will help them by guiding them through the selection process and other critical procedures. This effectively will relieve the work of our Faculties and also open up new domains to the students so that they learn things with a different flavour. Go_public@AeroClub is a series of fun demos and informal events that will be organised once in a while on random dates and times in the campus. The idea is to make some evenings at IIST interesting and to do something thrilling so as to spark an inspiration among the young minds. Idea is to bring an element of surprise and excitement to the campus and keep the morale high. Aeroclub takes this initiative to discuss some simple yet awesome ideas in the public on a completely random date and place. Idea is to move one more step ahead to go beyond seminars and sessions and make learning fun. A small group of working members will be held responsible for each branch. Each branch will have a blog and a site at which registered user will be able to post their experiences, suggestions and queries. Some of the branches are expected to become functional by the end of this semester. The spirit of having weekly/ fortnight events is kept alive by having Activities@AeroClub as one of the prominent branch. It is expected that the work done by the students involved in the AeroClub Summer Projects will be presented in few of the forthcoming sessions of AeroClub which includes Glider and its Trajectory measurements, Two-Stage water rocket, innovative heat exchanger etc. It will help in proposal of new projects or continuation of the past projects in new directions. These will be followed by other mind -boggling sessions like Micro Aerial Vehicles, RC Hovercraft, Unmanned Aerial Vehicles, Automobile gear box etc along with their demonstrations. In addition to sincere efforts from the students, we also expect to invite some of the dignitaries from different domains of science and technology to enlighten us and give us new areas in which we can learn new things and possibly contribute. AeroClub will also be used as a platform to call upon the Industrial Entrepreneurs who will share their marketing strategies and economies. Competition is the best technique in the learning process. AeroClub will be incomplete if

Aero Club of IIST

there are no competitions. Henceforth, it is planned to conduct Inter-College and Intra College competition which will aim to promote scientific way of tackling practical problems, fusion of ideas of students from different domains of interest. This may increase cooperation within groups as students are unified in working towards a common goal. The spark of evolving by competing will be kept lit by conducting an Aerofest in collaboration with Conscientia in the coming years. AeroClub will also encourage the students and develop them to compete in the national and international competitions like SAE, International Micro Aerial Vehicle Challenge, Fly Your Ideas etc. It will expose the students to the current technologies and concepts being used. Students will be able to think out of the box and implement it. Efforts are being made to collaborate AeroClub with other student activities clubs of other prestigious colleges like IITs, NITs etc. in order to be in constant touch with them. It will make the students directly interact with the students of other colleges. This may act as a discussion forum where ideas, opinions, information etc. will be exchanged. Collaboration with industries, especially in the field of aerospace like NAL, HAL etc. will be a major step. It will create a platform where students can visit these and perform some design analysis with their help. To conclude we can quote the view of one of the faculty of Aerospace Department Dr. Rajesh S. “I am very happy to see students engaging in activities other than that of purely academic nature, especially in aerospace related activities. I hope the time they spend in the club will help not just in their personal development but also will pave way for new technological inventions. I wish the Aeroclub all the success.�


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Members speak

Divesh Soni 3rd Year BTech Aerospace Engineering

Divesh is a member right from the beginning of the club. He was awarded summer internship by AeroClub at IIST. His passion is to explore aerodynamics of low speed flows. Contact:


eing a member of AeroClub, we feel proud to motivate and drive our colleagues into the magnificent landscapes of science, reality and technology. We discuss natural facts with them, we formulate the working of human miracles in harmony with the laws of nature. Being well aware of how to make their minds spark, we drive them to reason simple fundamentals using which they grasp even the most complex of the topics in no time. We love our work and thus have a strong bond between ourselves. Be it a demonstration or a session, every one of us is well aware of what needs to be done. Such understanding and thinking is based on the fact that we plan our work with regular interactions in the form of meetings and online discussions.

Mayank Kumar 2nd Year BTech Aerospace Engineering Mayank Kumar, an active member of the Club, has done an internship on Design of Two Stage Water Rocket under a faculty of IIST during the summer. Fascinated by the world of aviation, his prime interests include aeromodelling of RC planes/ gliders, and fabricarion. Contact:


hen I asked this question to myself, series of events started to flash in my mind. Starting from ornithopter session, breathtaking demo of water rockets to MATLAB session, I recollect how I was inducted in Aero Club. The journey since then has been splendid one. I learnt many new and fascinating things about the world around me. Aero Club is an excellent platform for learning and growing. Being a member of aero club, I feel motivated to organize sessions. The organization of the club is a dedicated team who are always ready to clear your doubts. It teaches me to be fundamentally clear and logical. It feels like a family where I learn and grow and motivate others to do same.

Aero Club of IIST

Swapnil Kumar 3rd Year BTech Aerospace Engineering

He’s is in Aerodynamics team of Vyom MkII, the sounding rocket project of IIST. He has done a project on Nozzle Flows. His interest includes Aerodynamics and Aviation industry. Contact:


ell there is a lot to mention here, so in short being an AeroClub member has its own advantages; it’s a platform where we actually perform, we do stuff, we present stuff, which makes us learn, makes us more responsible and has made us believe that we can take decisions and can implement them with good results. AeroClub has built a platform for us to possess more confidence and even somehow made us feel that we are a technical organization, and the coolest part, we run it and we own it. That’s what you call advantage. But at a personnel level “There is lot to accomplish”

Mariya Ratlami 2nd Year BTech Aerospace Engineering

She is an active member of Aeroclub. She enjoys learning things and actually doing it. She is equipped with innovative ideas and takes active part in discussing them. She is also a member of Vyom Mk-II team. Contact:


eing a member of AeroClub gives true feeling of studying in an institute like ours. It’s solely an awesome experience to work and learn with people who share your interests. It’s like a bustling school of thoughts which gives various opportunities to interact with faculty members and implement your ideas way smoothly and effectively than usual. Ofcourse it takes a bit of your “study” time, but sometimes might teach you more than any book can. Also the fact that aero club is so well organized assures enhancement of your management skills. It’s a place of FLYING IDEAS and I feel glad to be a part of such a stimulating club. Hoping a giant leap ahead for the club in near future. Good luck to us.


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Fresher’s viewpoint

Shreya Mandal Priya Sarkar

1st Year BTech Avionics 1st Year BTech Physical Sciences


t was August 21, when we saw first “Eye Catching” caption on the monotonous notice boards. While calling it a wonderful experience would be conforming to dry, boring clichés, it was not just that, rather it was a “mind blowing” experience. We feel that AeroClub is cool (and not only because it has a cool logo and t-shirt) but because it has cool people as well as an engaging audience. The concept of flight, and how the force exerted by something as simple as moving air is capable of lifting heavy chunks of metal into the air has always fascinated us, and we think AeroClub has the scope to provide us with answers, make us come up with more questions and show us further applications that go beyond what is covered in academics. Talking about the first AeroClub session, we braved the wind and rain to assemble in the packed seminar hall in D4 where they were showing a video of a breathtakingly beautiful aircraft performing acrobatics somewhere above the stratosphere. After a quick introduction of the seniors, we played a small game where the whiteboard was divided into 3 branches of IIST- Aerospace, Avionics and Physical Sciences; we were asked to name the different components of an aeroplane and a rocket, and each component was put under the branch that was responsible for developing it. After that, we were introduced to what the Aero Club was all about by a unique presentation and the different projects and activities associated with it, as well as the summer projects carried out by the students during vacations. And then, the demonstrations! There was a glider which the seniors wanted to show us, but because of certain PS problems (i.e. rain), it couldn’t work out which thankfully, wasn’t a problem for the water rocket! All of us whipped our umbrellas out (and those who did not have an umbrella went without) because we were surely that excited as we headed in front of the library. We waited in anticipation for the rocket to “lift off” and then with a loud whoosh, it streaked past us in the rain, using a jet of pressurized water to cover a distance of almost 100 metres, amidst our claps and cheers. One of the things we liked the best about Aero Club is the environment, which is such that what we are told things in a faster and a more memorable way than what is taught in class. It’s about knowledge and having fun rather than using it to pass exams or get a CGPA of 7.5 or above. Also everybody, from all the 3 branches, is encouraged to join and is not only limited to aerospace people.

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A Concluding Note by Mentors

Dr. Praveen Krishna Assistant Professor Aerospace Engineering

Dr. Pradeep Kumar P. Assistant Professor Aerospace Engineering

The purpose of this fraternity “AeroClub” is to promote innovative learning through workshops, talks, translating innovative ideas to working model etc. It is with happy memories, we recall the club hosting creative workshop for students and competitions before its official inception in November 2013. A group of enthusiastic students have been working hard towards ensuring an organised start up and subsequent smooth functioning of the club. Furthering the learning other than the regular curriculum is possible if there is forum unit “critical mass” of students who could share their novel ideas, work out workshop sessions to aid the innovative learning of concept that they study in classrooms. Student members of the “AeroClub” deserve a cheerful applause for having hosted many creative workshops, talks and competitions in a short time. It gives us immense pleasure for having been amidst enthusiastic student groups. We sincerely hope that the Club would become a place where we could see students tweeking and having unprecedented models with an ambience of brainstorming and creative discussion of ideas in the years to come.


Aero Club of IIST

AeroClub Team 2013-14

(From L to R) Rajeev Verma, Mohd. Ahmad, Sreeraj Varma, Anand Verma, Samar Manimaran, Amit Kamboj, Tanmay Singhal, Akhil Jaiswal, Gaurav Vaibhav, Rahul Tanwar J. Yudhisthir, Aman Gupta, Divesh Soni, Raman Chawla, Swapnil Kumar Mayank Kumar, Manish Mishra, Mariya Ratlami Not in Photo: Vidur Paliwal Mofeez Alam Amal Jyothis


Udaan Mach 1.0