The main deity in this temple is Varadharaja Perumal and the goddess is Perundevi.

During that period, Ramanuja, a vaishnavite scholar lived in Srirangam.

The guru of Ramanuja, Peiya Nambi, aged 105, with her daughter, also accompanied Koorathaallhvaar.

On their return, at this place of Pasupathikoil, due to the ageing and illness of Periya Nambi, they rested for a while.

At this time, Vishnu as Varadharaja Perumal granted darshan and salvation to Periya Nambi, in this place.