With the meteorological department expecting the monsoon to hit the city within a week the Kolkata Municipal Corporation (KMC) is working on a war footing to prevent water-logging and mosquito-borne diseases during the rainy season. Read: Dengue back in Kolkata? Having spent almost Rs 30 crore the KMC is confident that the advanced and upgraded machinery along with extensive de-silting of the sewerage system in pockets known for water logging will help in addressing the problem. Mayor-in-Council member for sewerage and drainage Tarak Singh told IANS: Along with setting up new pumping stations we have bought new semi-automatic manhole de-silting