According to the 17thcentury Hindu mythology work Keralolpa

According to the Sangam classic Purananuru, the Chera king Senkuttuvan conquered the lands between Kanyakumari and the Himalayas.[43] Lacking worthy enemies, he besieged the sea by throwing his spear into it.[43][44] According to the 17th-century Hindu mythology work Keralolpathi, the lands of Kerala were recovered from the sea by the axe-wielding warrior sage Parasurama, the sixth avatar of Vishnu (hence, Kerala is also called Parasurama Kshetram 'The Land of Parasurama' in Hindu mythology).[45] Parasurama threw his axe across the sea, and the water receded as far as it reached. According to the legendary account, this new area of land extended from Gokarna to Kanyakumari.