Method of Data Collection & Assessment of Social Impact In India. Social impact assessment in India, prior to the law, by the Right to Fair Compensation and Transparency in Land Acquisition, Resettlement Act_ Social Impact Assessment (SIAs) were mandated in 2013. Though, this law was passed when India was still a colony that was controlled by the Land Acquisition Act of 1894. But, there are many changes that have been interrupted. However, SIA is the process of assessing, the social impacts in order to follow from a project proposal, in an attempt to quantify those impacts. It alerts the planners to understand the potential consequences of that proposed project. Prior to those, it is a powerful tool allowing decision-makers to initiate necessary steps to prevent harmful potential impacts. Social impacts are consequences to human populations of any public or private yards, as it includes change in ways they live, work, organize, etc. these impacts can be positive or negative. Social impact assessment used both primary and secondary data; where Primary data includes the project-specific surveys and coverage of fieldwork in India, which is similar to quantitative data collection. On the other hand, secondary data includes the data on proposals, interviews, and other documents. SIA also uses both qualitative and quantitative methods. But mostly, it has to view in quantitative method that it gives no alternative in presenting the exact survey data. The fieldwork in India regarding the Social impact assessment is done to identify project’s adverse impacts as the first task. Identifying people who are all affected by the project, understanding the impacts that affected people's livelihood, and describing the project impacts on different groups as well. Finally, in providing a brief executive summary. Nevertheless, Impact assessment in short said as, those are formal, and evidence based procedures that assess like economical, social, and environmental effects of public policies. It also means, measuring the effectiveness of organizational activities and deciding the significance of changes that brought neither in Art or Science, also both.