Mark your calendar! Chaiti Chhath 2026  falls from  22–25 March.  Explore rituals, fasting, spiritual significance, and Vedic shastras from Nahai-Khai  to Arghya ." Chaiti Chhath 2026 will be observed from 22 March to 25 March, marking a sacred four-day festival of devotion, Sun worship, and family blessings. Beginning with Nahai-Khai and concluding with Usha Arghya , this festival is celebrated with immense fervour in Bihar, Jharkhand, Uttar Pradesh, and the Mithila regions