Municipal Corporation Of Delhi — main sewer line blocked

I (Kapil chawla) am resident of b-72, majlis park, street no.1 delhi -33. I would like to bring in to your notice that the main sewer line of our street is blocked from last several days. Despite my regular visits to the local complaints office from last 4 days. No action is taken till date. My complaint is already registered with local office. But in vain. Kindly look in to the matter urgently.
Thanking you,
Kapil chawla.