Sambhar Lake in Rajasthan is the largest saline water lake in India. The saline wet land is elliptical in shape running east northeast to west southwest with length of 35 km and breath varying between 3 km and 11 km.  The circumference of the lake is 90sq miles and is surrounded by Aravalli hills. These are residual hills with several gaps. Aravalli ranges in the northwest and the west of the lake are seen with the highest peak of 500m called Patiala Dungar.  At full capacity lake covers an area of 90 sqkms and thus it the largest saline lake of the country. A dam 5.16 km long, made of sand stone divides the lake between Jhapok (in South) and Gudha (in North) It is surrounded by three districts namely Jaipur, Ajmer and Nagaur. Sambhar has been designated as a Ramsar site in the year 1990 at convention at Montreux, Switzerland(1) as thousands of birds migrate in winters from Northern Asia and Siberia.

Keywords: Saline Water Lake, Aravalli Hills, Evaporation, Crystallisation, Percolation.