However, considering all the demerits and the demand for water, as a civil engineer, I would rather go for self-sustainable method. Since we are receiving 4000 cubic kilometers of rain annually and our dams have the capacity to hold only 200 cubic meters per person, i will go for increasing the dam reservoir infrastructure state by state in order to avoid wastage of rain water and utilized water without recycling.
Developed countries are strategically saving 900 days of rain water. We can rather increase the rain water storage, if the inter-linking of rivers takes time to start its progress. Rain water harvesting awareness was created in Thamizh Nadu and all the people were advised to install rain water harvesting systems in their homes. But this method didn’t show much progress. Proper drainage systems and waste water management and conservation of rivers and lakes is the best solution to avoid water scarcity and unnecessary implementation of inter-linking of rivers by wasting 5,00,000 crores or more and bearing its demerits and opposition from some of the surplus water owner states due to their doubts about chances of their water resources getting depleted in future.