Delhi Jal Board — mcd water like gutter ka pani

We residents of block 10 vijay nagar double storey delhi 110009... Black smelly dirty water nalla pani is being supplied since 6 days... People having health hazards.. Water is not even perfect for safai etc... Mcd water supply is very bad since last one week.. We are having too much problem.. Water is very much smelly black in colour.. Somewhere nalla water is being mixed.. Please resolve the problem at your earliest.. Otherwise residents may get ill due to same.