Manusa is a lake mentioned in the Rig Veda, Aitareya Brahmana and the Mahabharata. The story of Manusa Lake is found in the Mahabharat. Legend has it that some black antelopes were struck by the arrows of a hunter. They got into the lake and emerged from the water as human beings – Manusa.
The modern village of Manas, 5 km west of Kaithal in Haryana is identified with the lake. The village has a large area under water.
As per Rig Veda, Bharata princess kindled sacrificial fire on the banks of sacred rivers and Lake Manusa.
Manusa Lake is considered as a Tirth, or sacred pilgrimage spot, in the Mahabharata, Vamana and Padma Puranas.