What kind of comprehensive plan is needed to tackle the developing water crisis in India?

India is already staring at a prolonged heat wave which is longest in the recorded history. The current pre-monsoon season in the history of last 65 years is the second driest. 42% of the country is almost dry. Adding to this situation is the fear that the onset of monsoon is delayed. There is a significant drop in the level of perennial rivers like Cauvery, Krishna and Godavari. The usage of water has also become unsustainable. There is also a depletion in underground water table. In the coming years also there will be a 43% decline in the availability of water. The government should come with a comprehensive water plan which focuses on water re-use.