It is located on the Tindivanam - Thiruvannamalai road about 25 kms. from Tindivanam and is about 132 kms. from Chidambaram. This place is associated with Raja Desingh. There is a 700 year old fort running over three hills of huge and steep boulders. According to tradition the original fort was laid by Kone Chiefs. The fort was ruled by Vijayanagar Nayaks, Marathas, Moghuls, Carnatic Nawabs, the French and the British Rajagiri and Krishnagiri are two important fortifications here and it is a popular picnic spot.
Entrance fee : Rs. 2.00 per head
Visiting hours :9.00 a.m. to 5.00 p.m.
Every Friday free entry.