According to the Markandeya Purana and the Vishnu Purana, the day of Ekadashi is itself a form of Vishnu. The vrata observed on this day is said to wash away all sin. One who completes the vrata of Nirjala Ekadashi is mentioned to gain the favour of Vishnu, who grants him happiness, prosperity and forgiveness for sins. The devotee is described to receive the merit gained by the observance of all 24 ekadshis in the year. It is most popular and strictly observed by the Vaishnavas, in particular