The biggest freshwater lake in India is

Wular Lake in Jammu and Kashmir is India's largest freshwater lake.

Sukhna Lake is a small man-made reservoir in Chandigarh, far smaller than Wular.

Dal Lake, also in Kashmir, is famous but much smaller in area.

Loktak Lake in Manipur is the largest freshwater lake of northeast India but smaller than Wular.

Wular is fed by the Jhelum River and acts as a natural flood basin.

It is a designated Ramsar wetland of international importance.