Dharmapuri district, which came into existence from 02.10.1965 is situated in the North western Corner of Tamil Nadu and is bounded by Tiruvannamalai and Villupuram Districts on the east, Salem District on the South, Krishnagiri District on the north and Kaveri river on the west. It is located between latitudes N 11 47’ and 12 33’ and longitudes E 77 02’ and 78 40’. The total geographical area of Dharmapuri District is 4497.77 Sq Kms, i.e. 3.46% of Tamil Nadu.
The climate conditions of the district is hot and dry in summer i.e., from March to May and in winter, it is very cold and misty i.e., from November to February. The Normal Rainfall of the District is 902.1 mm.