Karwa Chauth is a festival celebrated by Hindu women from the Indian Subcontinent on the fourth day after Purnima (a full moon) in the month of Kartika. Like many Hindu festivals, Karwa Chauth is based on the lunisolar calendar which accounts for all astronomical positions, especially positions of the moon which is used as a marker to calculate important dates. The festival falls on the fourth day after the full moon, in the Hindu lunisolar calendar month of Kartik.
On Karwa Chauth, married women, especially in North India, observe fast from sunrise to moonrise for the safety and longevity of their husbands.The Karwa Chauth fast is traditionally celebrated in the states of Delhi, Haryana, Rajasthan, Gujarat Punjab, Jammu and Kashmir, Uttar Pradesh, Bihar, Himachal Pradesh and Madhya Pradesh.It is celebrated as Atla Tadde in Andhra Pradesh.
Karva is another word for 'pot' (a small earthen pot of water) and chauth means 'fourth' in (a reference to the fact that the festival falls on the fourth day of the
