Within 15 days after the yearly desilting work started, the BMC has claimed to have completed 27 per cent of nullah cleaning by Wednesday. Out of the total, 2.78 lakh metric tonnes of silt removed, 1.23 metric tonnes (50 per cent) silt was removed only from the Mithi River. The BMC has set a target to remove 10.21 lakh metric tonnes by May end.

There are 309 major drains in Mumbai, including three rivers with an approximate total length of 290 km. The city has roughly 2,500 km of minor nullahs, including 605 km of small nullahs, 475 km of century-old underground stormwater arch drains in the south city, and roadside gutters. 11 km of Mithi River is desilted through a separate contract.