Dakshin Puri Over flowing serwer line

I am a resident of 15/25 Dakshinpuri, Dr. Ambedkar Nagar Sec.05, New Delhi 62. One sewer in our line is overflowing from last one month.. Due to overflowing sewers, it’s affecting even the drinking water supply.
Every resident is under constant threat of falling sick . We are not even able to take bath. Constant bad smell making difficult to sit in homes and also a breeding ground for mosquito menace. Please look into this on an urgent basis.

Regards
Rohit
Mob. 9899982672