Ahar River

The Ahar River is a tributary of the Berach River which drains to Banas River. The Banas River, in turn, is a tributary of the Chambal river, which eventually drains to the Yamuna River. The Yamuna River is the principal tributary of Ganges River, making the Ahar River part of the extensive network that contributes to the Ganges basin.

The river flows through the Udaipur city and is its larger drainage body. The spill water of the famous Lake Pichola and Fateh Sagar Lake of Udaipur district gets into the Ahar river. The river further downstream feed the Udaisagar Lake located just outside Udaipur city. This historically important river is at present functioning as the drainage body of the Udaipur city filled with sewage and garbage.

Ahar River is also the site of 3000 BC to 1500BC Chalcolithic archaeological culture Ahar-Banas culture.

On its river bank in Udaipur there are Royal Cenotaphs of Maharanas of Mewar called "Ahar ki Chhatriya" literally Ahar Cenotaphs.