a) Scarcity of water: Due to high population, increasing urbanization and rising standard of living, there is a growing scarcity of water felt all over India. b) Use of degraded water: In many areas, people are forced to drink and use polluted water which causes various water borne diseases. c) Lowering the water table: Increased use of tube wells in recent years has lowered the water table and has caused depletion of underground water resources. d) Inadequate supply water for irrigation; Two third of the cropped area in India is still rainfed , which is uncertain and irregular which affects agriculture.