It is one of the 9 Navagraha temples in Kumbakonam especially dedicated to Rahu. The temple has a separate shrine also. Here Rahu is seen with two consorts Nagavalli and Nagakanni.
Rahu worshipped Lord Shiva here and got relieved of a curse. A unique feature of the temple is that Rahu Bhagawan is seen with a human face, as mostly he is seen with a serpent face.
It is believed that those who are suffering from dosha of delay in marriages, childlessness, troublesome married life and Kalasarpa Dhosa can be cured by doing milk abhishekam. The unique thing is that the milk when poured over the idol turns blue, which is clearly visible.