Pennagaram taluk is a taluk in the Dharmapuri district of the Indian state of Tamil Nadu. The headquarters of the taluk is the town of Pennagaram. The district is located between latitudes N 11 47 and 12 33 and longitudes E 77 02 and 78 40 . Occupies an area of 4497.77 km²(i.e. 3.46% of Tamil Nadu) and has a population of 2,856,300 (as of 2001). It is bounded on the north by Krishnagiri District, on the east by Tiruvannamalai District and Viluppuram District districts, on the south by Salem District, and on the west by Karnataka's Chamarajanagar District.The Whole district is surrounded by hills and forests.