Two third of this world is surrounded by waterbodies. Wetlands occupy an estimated amount of 6.4% of the earth's surface(IUCN Environmental Policy and Law paper No.38). Wetlands are among the earth's most diverse and productive ecosystems. Wetland sustains all life and performs some useful functions in the maintenance of overall balance of nature. As a result of rapid urbanization, increase in population, technical development, economic growth and various anthropogenic activities, more and more waste materials were discharged into the natural sources of water bodies apart from conversion of wetlands for anthropogenic activities. Due to this, declination of wetland quality and quantity takes place and the requirements for water have also increased along with greater demands for higher quality water. Hence it is imperative to conserve and preserve these wetlands to make it fit for local consumption and to maintain the ecological balance.