Chhath Puja, a revered Hindu festival respecting the Sun God, and Chhathi Maiya, are predominantly observed in the Indian states of Bihar, Jharkhand, and Uttar Pradesh.

Celebrated on the sixth day after Diwali, i.e., on the sixth day of the Hindu lunar month of Kartik, this significant celebration involves devout fasting, ceremonial bathing, and offering prayers to the sun at both its rise and fall.