Jain fasting observed when the moon transits Rohini Nakshatra, performed for the well-being of family.

Rohini Vrat is one of the most important observances in the Jain calendar, kept on the day the Rohini nakshatra is in ascendance — roughly once every 27 days. It is dedicated to Lord Vasupujya, the twelfth Tirthankara. Jain women in particular keep this fast for the long life, health and prosperity of their husbands and for the removal of accumulated karmic bondage, especially the karma that causes poverty and misfortune. The vrat is traditionally observed for three years and five months, or five years and five months, and then concluded with udyapan (a formal completion ceremony). Its underlying purpose is not transactional but ascetic: to weaken attachment through voluntary restraint.

Strict observers keep a full waterless fast. Others keep ekasana — a single meal taken in daylight. Jain practice forbids eating after sunset in all cases.