Deities: The Moolavar here is known as Maruviniya Maindan and is a 12 feet long image made of green stone and in a reclining posture facing east. Taayaar here is Parimala Ranganayaki or Chandrasaapa Vimochanavalli or Pudareekavalli. Images of Kaveri and Ganga are also seated in the sanctum, as is Santana Gopalakrishnan. Bhrahma is depicted on the wall. There are shrines here for Yoga Narasimhar, Rama, Anjaneya, Suryan and Chandra.
Temple: This temple has with three prakarams and a five-tiered rajagopuram which facesthe east. The Dwajastampa mandapam and the Garuda mandapam have beautiful sculptured pillars. The Garuda mandapam has images of the 10 avatarams. It is believed that offering worship to Santana Gopalan in the sanctum, aids barren couples.
Legends: Demons Madhu and Kaitabha stole the Vedas, and disappeared into the sea. Vishnu came in Matsya avataram and restored the vedas, and their fragrance, hence the name Sugandharanyam, and Parimala Ranganathar and Parimala Ranganayaki. Legend also states that Chandra (the moon) was cured of an affliction after bathing in the Kaveri and offering worship here.
Festival: The entire month of Libra is of festivity centered around the river Kaveri, when the festival image is taken every day in procession to the river Kaveri.