Thirunaagai temple is situated in
Thanjavur District of
Tamil Nadu, near Nagapattinam railway station. The main deity of the temple is Lord Neelamega (
Vishnu). The idol is seen in a standing position facing the east. He holds a weapon known as ‘gadhayudham’ in his hand.
The temple has a very big
gopuram and contains 15
vimanas (shrines). The shrines are dedicated to the gods Govindaraja, Ranganatha, Pachivanna, Pavalavanna, Varadharaja,
Ram, Srinivasa, Vaikundanatha, Aandal,
Aanchaneya and Garudan.
Inside the shrine dedicated to Lord Ranganatha, there is a bronze idol of Lord Narashima with eight hands.