Mercury is the only liquid state metal, which finds very wide commercial application in industries, electrical appliances, mercurial catalysts, healthcare sector for extensive , seed treatment, laboratory reagents etc. Because of extensive use in thermometers, sphygmomanometers, dental amalgams, agriculture for seed treatment, as laboratory reagents etc. Because of extensive commercial use, the mercury consumption in the country is quite high. The Mercury Cell process based Chlor-alkali industries are one of the major users and thus prime source of mercury release to the environment along with the coal-fired thermal power plants, plastic industries, pulp and paper industries, discarded medical instruments, used electrical appliance, electronic waste, certain pharmaceuticals and agricultural products.