 Because of the percolation of poison, the land of Kerala was desalinated, to become habitable with envious greenery.Parasurama then requested the Lord to bless the land forever with his eternal presence which was also accepted by the kindly-disposed Nagaraja.Parashurama installed, according to Vedic rites, Nagaraja, who is Brahma, Vishnu and Siva in one in the 'Thirthasthala' (Hall of pilgrimage) filled with Mandara trees, the place now known as Mannarasala.