Karwachauth

Karva Chauth is a one-day festival celebrated by Hindu women in India in which married women fast from sunrise to moonrise for the safety and longevity of their husbands.The festival falls on the fourth day after the full moon, in the Hindu lunisolar calendar month of Kartik.
Karva is another word for 'pot' (a small earthen pot of water) and chauth means 'fourth' in Hindi (a reference to the fact that the festival falls on the fourth day of the dark-fortnight, or krishna paksh.