Parvathamalai is located at Thenmahadevamangalam village which is about 20 kms off Polur. Polur is some 35 kms north of Thiru Annamalai (Arunachala). There’s a very powerful Lord Shiva temple at the top of the Parvathamalai hill. Devas and spiritual beings from other lokas worship here every night. This is a place visited by numerous Siddhas for Shiva worship. Reaching the hill is somewhat difficult. Hence it is better to start early in the morning and return as early as possible. During the Pournami full moon, this hill attracts a lot of devotees. This is a place vested with a lot of spiritual power.