This is a broad field so briefly:
This is dependent on industrial and construction activities . While there are laws by pollution control board but implementation is poor.So need to strengthen compliance.
Dependent on industrial , commercial & residential operations where compliance is an issue regards to what is being pushed in to municipal sewage system.
Further,the adequacy and maintenance of nallas / sewage drains needs critical review.
Also , the big issue of water table depletion can be easily handled by creating a focussed group providing harvesting systems with attractive subsidies.This can be done by increasing cost of water supply so that harvesyinf schemes appear attractive.Also no new construction project should be passed without an adequate water harvesting system.
A ppp model for collaction , transportation & disposal processes will do well.Again need for more regulation.
We caqn discuss details on each topic relating to planning , organizing , funding , technology etc
Sunil K Chaturvediskcskg@gmail.com