Delhi Jal Board — Impure drinking water

Hi,
I am a resident of Yadav Nagar, SamayPur Badli. Our colony receives impure, yellowish & dirty water, which is unfit for drinking, even after repeated filtrations. The water we get through our taps, completely defeats the inherent properties of water. It is usually brown, contains visible impurities & tastes horrible. At times it smells so badly, as if it's coming directly from some drains. The water quality is so bad that it cannot be used for washing purpose. Yadav nagar people are dependent of bisleri cans for drinking water. Delhi Government claims to provide clean and pure drinking water to the Delhi people, but it seems failing in our colony.
Please take necessary steps and provide clean water for drinking.
Please help.