Sithanvazhoor is near
Kumbakonam, 5 km south-east of Valangaiman. Surrounded by four temples in all four directions, it is the place where many siddhars lived and is also known for its natural beauty.
The Sullanar River flows on its northern side. It is said that Sage Agastya visited the place to worship the siddhars, during the holy wedding of Lord Shiva and Parvati. Some lingams were installed by the Siddhars. One of the five Lingams is still seen at Sri Kailasanadhar temple here.