Which one lake is located in Puducherry

Ousteri LakeOssudu Lake, is the most prominent lake located in the Puducherry region. It is a man-made lake and spreads across the Puducherry and Tamil Nadu border.

Ousteri Lake is recognized for its ecological importance. It is a declared bird sanctuary and attracts many migratory and resident birds, making it an important spot for biodiversity and birdwatching. The lake also plays a crucial role in groundwater recharge and serves as a source of water for nearby areas.

In contrast:
Chilka Lake is located in Odisha.
Kaylana Lake is situated in Rajasthan.
Anshupa Lake is also located in Odisha.

None of these other lakes are located in the Union Territory of Puducherry.

Therefore, Ousteri Lake is the lake located in Puducherry and is known for its environmental and ecological significance.