Thalamalai Perumal Temple is situated on a unique rock on the peak of Thalaimalai Hill. It is a renowned Vaishnava temple. This hill gets its name because it resembles the head of a person. This hill is also known as Siragiri. The presiding deity of the temple is Nallendra Perumal, a form of Lord Vishnu. One can find shrines of Venkatachalapathy, Alamelu Mangai Thayaar, Goddess Mahalaxmi, Sri Devi, Bhudevi, Lord Anjaneya, Garudazhvar, and Karupanna Swami. If one takes a holy dip in the Kannimar Sunai and pray to Lord Nallendra Perumal, they would be void of the bad effects of Lord Shaneeswar. This temple was built by Madurai Nayaks.There is a spring called Ramar Sunai with water flowing all the time. Devotees walk around on a narrow path around the temple for pradakshinas. People strongly believe that going round this rock temple would give them successful marriage, wealth and child birth.