About the origin of this region,
legends are many and anecdotes are odd and awe-inspiring. This kshetra was known as
Jnanaranya in the dim past. During the time of Parasuram, the valorous son of
Sage Jamadagni, it was the favorite retreat of several sages. All on a sudden, the sea advanced and
submerged it. Afflicted munis approached Parasuram, doing a great yaga then to expiate the sin of
killing kshatriyas, and prayed piteously for intervention.
Parasuram threatened the sea-god
to release Agneyastra, if he did not concede to his bidding. Shivering all over, the sea agreed to recede
to the extent of land covered by his axe, when hurled into sea. The axe when hurled covered the area from
Gokarnam to Cape co Morin. Anon the sea receded from Goa - Gokarnam to the Cape. The sages
returned to their retreats and spent a care free life. So Parasuram is closely associated with the present
Kerala for its existence and prosperity and venerated as Agastya in Tamil Nadu.