Kurnool, the 2nd biggest district of Andhra Pradesh, is situated in Kaveri & Tungbhadra river basin. It has been the site of evolution of human civilization since Palaeolithic era. The rock arts and paintings, dating back to 35,000 to 40,000 years ago, have been found in the Jurreru Valley, Katavani Kunta and Yaganti of Kurnool district. The Ketavaram rock paintings are dated back to the Paleolithic era.