We need desalination plants

The Government of India and every government for that matter needs to subsidise the construction and operation of desalination plants. This will ensure that we have enough water to last for centuries. 

Simply saying that desalination plants are too expensive is not acceptable. 

Also, as far as India is concerned, water should be on the Union list and not a state subject. It is too important a resource to suffer at the hands of bickering state politicians.