Which of the following is not a natural lake?

Renuka
Rewalsar
Pandoh
Chamera

The correct answer is C. Pandoh.

Pandoh is a reservoir lake created by the construction of the Pandoh Dam on the Beas River in Himachal Pradesh, India. The dam was completed in 1977 and the lake has a surface area of 12.5 square kilometers.

Renuka is a natural lake located in Sirmaur district of Himachal Pradesh, India. The lake is sacred to Hindus and is a popular tourist destination.

Rewalsar is a natural lake located in Mandi district of Himachal Pradesh, India. The lake is sacred to Buddhists and is a popular tourist destination.

Chamera is a natural lake located in Chamba district of Himachal Pradesh, India. The lake is sacred to Hindus and is a popular tourist destination.