The Ahar culture, also known as the Banas culture is a Chalcolithic archaeological culture on the banks of Ahar River of southeastern Rajasthan state in India, lasting from c. 3000 to 1500 BCE, contemporary and adjacent to the Indus Valley Civilization. Situated along the Banas and Berach Rivers, as well as the Ahar River, the Ahar-Banas people were exploiting the copper ores of the Aravalli Range to make axes and other artefacts. They were sustained on a number of crops, including wheat and barley.