according to bhavishya purana, when parshurama destroyed all the kshatriyas in the land, the brahmin priests, headed by sage vasishtha, kindled a sacrificial fire at mount abu and prayed that they be granted protection by being given some warriors. in answer to their prayer, four heroes came out of the sacrificial fire-pit and these were the ancestors of the chief rajput clans - the parmaras, the pratiharas, the chauhanas and the chalukyas.