How serious is the groundwater pollution problem in India?
Groundwater pollution is very difficult to evaluate as till now, there is no nationwide survey or study of it except the few studies done by CPCB. On that basis I can say that it is very serious and needs special attention.

Why has groundwater pollution not got its due attention?
It is partly due to lack of awareness among people and policymakers and partly due to the backlog of inaction in averting this pollution. Till now the general belief among people is that groundwater is pure and can be consumed straight. The reality is totally the reverse of it