With reference to India, Didwana, Kuchaman, Sargol and Khatu are the names of

Didwana, Kuchaman, Sargol, and Khatu are all ephemeral saline lakes, also known as playas, located in the semi-arid regions of Rajasthan. While these are significant salt-producing water bodies, they are not designated as Ramsar sites, which is a common point of confusion given that other Rajasthan lakes like Sambhar are on the list. The core concept being tested is the regional geography of India, specifically the inland drainage systems and geomorphology of the Thar Desert region.