Chhath Puja 2026 will be observed from November thirteenth to sixteenth with rituals dedicated to the Sun God and Chhathi Maiya. Nahay-Khay (First Day) - The Chaiti Chhath festival begins with Nahay-Khay. On this day, devotees bathe in a holy river or body of water and consume sattvik food. Kharna (Second Day) - The second. After the sacred Sandhya Arghya, it's time for the Chhath puja's concluding ritual, Usha Arghya.