Abstract: Water is a prime natural stockpile, a basic human need and a treasured national asset. Planning, development and management of water manoeuvre need to be governed by national perspectives. We are all too familiar with the problems of water on earth in both qualitative and quantitative aspects. India receives annual precipitation of about 4000km3, including snowfall. Out of this, monsoon rainfall is of the order of 3000km3. Rainfall in India is relying on the south west and north- east monsoons, on shallow cyclonic depressions and disturbances and on local storms.