Nagpur Municipal Corporation — Sewerage line are choked and blocked and damaged

Address:

Indira Nagar, Jattarodi No. 3,Chanatoli, Nagpur-440003.

I Kailash Verma live in Indira Nagar Jattarodi no. 3, Chanatoli, Nagpur-440003., Prabhag No. 17 ( New Prabhag 43), under Nagpur NMC Dhantoli zone.
Dispite complaining several times, they are not changing the pipeline of the damaged sewerage line.
Due to damage to the pipeline of sewerage, the gudder line completely choked and blocked. Due to which the used water of our house does not get drained and the dirty water accumulated in the gudder comes back. Suffering from this problem since last one year.
I have two school going children at home who have to face a lot of difficulties in the morning. On complaining the only answer was that the work would be done, but when?
Please solve the problem