Sewage backflow into homes near a Musi nala after heavy inflow

After heavy inflow into a Musi nala, sewage has backed up into ground-floor homes in a low-lying basti, and the stench and contamination are severe. A crew is pumping it out today. Requesting urgent desilting of the nala mouth and a non-return arrangement, because this backflow recurs here whenever the nala runs high.