It is more than 200 years old. The Mariamman idol is said to be installed by the army men of Tippu Sultan at the fort of the mountain. Hence it is called Kottai (Fort) Mariamman temple of Dindigul. The temple is constructed in the shape of a square. There is a temple for Vetri Vinayaka at the South& Lord Muruga at the North of this temple. There is a Mandapam (Hall) in the centre of the ground in which there is a sculpture of a Lion facing the Sannidhi. The Sanctum Sanctorum is small & square shaped. The deity consecrated (Moolavar) is seen here, embedded deeply under the floor.