Delhi Jal Board — dirty contaminated water since 3-4 days

In all flats of house number 190, block 26, west patel nagar, new delhi, there is dirty contaminated, foul smelling water comes since last 3 to 4 days and there is same problem in other building also.. Kindly consider and solve it as immidiatly as possible. Jab v motor on karta hu tabhi pani aa ja raha hai water supply ka time ho ya na ho fir v pani aata hai