Karwa Chauth 2026: Can unmarried women keep fast for fiancé or future husband? Know rules, rituals, how to break fast, puja vidhi, and what traditions to follow before wedding. Karwa Chauth is one of the most significant festivals for married women in India On this day women observe a strict nirjala fast without water from sunrise to moonrise They fast for the long and healthy lives of their husbandsnbsp; Can Unmarried Women.