This temple is situated on the seashore in Varkala at Trivandrum district and is a Mahakshetra. The presiding deity is Vishnu, and the idol including the lotus-shaped platform is six feet in height. As per the epic, the idol was found on the southern sea coast. The sanctum sanctorum is round and is facing east. Four poojas are conducted in a day abiding by Cherumukku thanthric. The chief priest should compulsorily be from another place, and should not be a native of the place where the temple exists. Sub-deities are Ganapathi, Shastha, Ananthakrishanan (Nagam) Shiva, Chandikeshan, Hanuman and Nagam. Ten-day festival is observed with an more arrattu on the Uthram star day of the Malayalam month of Meena. Offering of Bali here for the repose of souls is a very important ritual. As per Mahabharatha, Balabhadran has come here for a pilgrimage.