Municipal Corporation Of Delhi — Sewer Blocked - No Response After the Complaint

Address:

RZB-30, Durgapuri & Dwarkapuri, Vinodpuri, Block C, Vijay Enclave, Dwarka, New Delhi, Delhi 110045

Ajay Kumar or Deepak Kumar
RZ-O-21A, Nanda Block New Delhi 110045

Sewers are blocked and the dirty water is coming in home
We did complaint on 18th Feb about this but still no action. Not picking Phone or giving excuses only and number is switch off most of the time. We are suffering a lot. Really very bad service.
This problems happens every 1 or 2 months but still no permanent solution done. And also when this happens they don't come to clean it as now it has been 5 days after the complaint