Sree Poornathrayesa temple is situated in Tripunithura, Kochi, the capital of the former Kingdom of Cochin. The temple is considered among the greatest temples in Kerala. The temple is famous for its yearly Utsavams or festivals. The main one being the Vrishchikoltsawam, which is conducted every year in the month of Vrishchikam (Nov-Dec) kicking of 'Ulsava' Season in Kerala. The deity in this temple is Lord Vishnu who is in the form of Santhanagopala Murthy. It is well believed that childless couples will be blessed with children on praying Poornathrayesan.
The structure of the temple was redesigned in 1921 by the great architect Late Sri Eachara Warrier.
The first floor of the two storied gopuram consists of a mandapam (Dias), and eight beautifully carved wooden pillars support the Mandapam.