Chhath Puja began with the Nahay-Khay ritual on November 13, as devotees across India gathered at sacred sites like Deo Sun Temple to honor the Sun God. Over four days, Nahay-Khay, Kharna, Sandhya Arghya and Usha Arghya take place, with worshippers observing fasts, offering arghya at riverbanks and seeking blessings for family health and prosperity.