Delhi Development Authority [DDA] — Sewerage water in water pipeline

Address: H NO 170, SECOND FLOOR, POCKET 25, SECTOR 24

Sir
I am resident of H No 170, 2 ND floor, Pockey 25, Sector 24, Rohini Delhi ph No [protected]. There is problem of sewerage water mixing with drinking water from last 10 days. Many complaints have been made, no action has been taken. It is high risk of getting diseases. Please help.