Q1. The Mantha river merges into which of the following lakes of Rajasthan?
Explanation
The Mantha river is associated with the Sambhar Lake drainage system, so Sambhar Lake is the lake named in the official key. Pichola Lake is an artificial freshwater lake of Udaipur and is not the destination of the Mantha river. Didwana Lake is another saline lake of Rajasthan, but it is a separate basin from the Mantha-Sambhar reference. Ana Sagar Lake is located at Ajmer and is historically linked with the local Luni river channel there, not with the Mantha river asked in the question.
