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.