The National Commission for Integrated Water Resources Development Plan (NCIWRDP) has estimated that water requirement for power sector alone by the year 2050 will be as high as 43.7 billion cubic metre (bcm). It has also suggested efficient management and conservation of this important natural resource as there is already a sharp decline in its per capita availability. The total demand for water by all sectors of economy, including the domestic sector will rise to 1681 bcm by 2050 which would be much in excess of present total utilisable water resources of 1086 bcm.