Krishnagiri is a municipality town and administrative headquarters of Krishnagiri district in the Indian state of Tamil Nadu. Mango is cultivated as the main crop and the land here is extremely fertile with rich access to fresh water making it amenable to growing crops. Krishnagiri is a rapidly growing town and is the site of significant business and residential development. The Krishnagiri Dam is currently undergoing expansion and a variety of small-scale industry zones are being set up. According to 2011 census, Krishnagiri had a population of 71,323 with a sex-ratio of 1,015 females for every 1,000 males, much above the national average of 929.
The Krishnagiri district has a prehistoric importance. Archeological sources confirm the presence of habitats of man kind during Paleolithic, Neolithic and Mesolithic Ages. Various rock paintings and rock carvings of Indus Valley civilization and Iron Age seen in this district support the historical significance of this district.Krishnagiri district was carved out of Dharmapuri district on 9 February 2004 with five taluks and ten blocks.