Need rules and regulations regarding the prevention of water wastage

I would like to know that if there is a Water Conservation Act? When I observe people wasting more water than using it , it is really very painful & deleterious to all concerned. So is there a method/regulation that will help prevent the wastage of a precious resource. What are the steps that are to be taken in this regard? 

Manoj K Jain
fastestngo@gmail.com

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Regions