Viyazha Someswar Temple (Guru Sthalam at Kumbakonam)

Someswara temple is situated in the southern portion of Sri Sarangapani Temple. Lord Chandran did penance in this temple to get relived from his sins and got His Grace hence the name Someswar. Lord Viyazhan (Guru) got his powers by praying to this Lord and got the name of Viyazha Someswar. So, this is also a Guru Parihara Sthalam.

Source: http://www.heritagetown.org/navagrahaguru.html