Krishna Raja Sagara, also popularly known as KRS, is the name of both a lake and the dam that creates it. It is located close to the settlement of Krishnarajasagara in the Indian State of Karnataka. The gravity dam made of surki mortar is situated below the confluence of river Kaveri with its tributaries Hemavati and Lakshmana Tirtha, in the district of Mandya.There is an ornamental garden attached to the dam, called Brindavan Gardens.