respected sir/madam

I am one of the resident of 158/16 FF amit puri 'B' which comes under the south delhi area. Our area is suffering from highly dirty and smelly water from past one week which is not even suitable for washing and cleaning purpose, no one can even think of drinking it. It smells like it comes from some dead bodies. Please help us in this matter since it becoming a serious issue and already made some persons hospitalised.
We hope that our government will take some strict action in this matter .
Yours truely,
R B Sagar
158/16 FF
Amrit puri 'B'
new delhi -65