Located at Tripunithura,10 km from Kochi city, this temple formerly belonged to the Cochin Royalty. The deity here is Maha Vishnu and the temple is one among the three Vishnu temples in Kerala. This is the only place in South India where one can see an odd pose of Lord Vishnu, known as 'Poornathrayeesa' sitting under the shade of five royal hoods of the divine serpent, Ananthan, whose folded body itself acts as the throne for the God. Arjuna, the great archer and warrier, one of the Pancha Pandavas is believed to have established this temple. The eight day long annual festival of this temple is held during Nov-Dec, while the other cultural festival 'Attachamayam' is celebrated during harvest festival of Onam.