This austerity is related with the worship of lord Parshurama who is also famous as Jamdagnya. It is celebrated on the twelfth day of the bright half of the Hindu month-vaishakh. Before commencing the rituals, a devotee should purify himself by taking a bath and then worship an idol of lord Parshurama kept on a pot filled with water. While worshipping he should make offerings of various articles to the deity- flowers, sandalwood, ardhya, etc. It is mandatory to remain awake for the whole night. On the following day, he should donate the idol to a brahmin. A devotee who observes a fast on this day gets all his wishes fulfilled and attains to Brahma loka.