Kolkata: The Kolkata Municipal Corporation (KMC) will impose heavy penalty on the responsible private firm if the four pumps that have gone for servicing, are not ready by July 10.Tarak Singh, member, mayor-in-council (drainage) who had visited two pumping stations at Behala, said the civic authorities will not spare the firm for the inordinate delay in servicing the pumps. He said there are five pumps at Begorkhal pumping station.On the day when it had rained heavily last week, one pump was found to be functional, while four others could not be operated as the repairer had not installed them after servicing. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedHe said there are three pumps at the Behala Flying Club pumping station. Of these, one pump was working while the second one had developed a snag and the third one had been sent for maintenance, on the day when it had rained heavily last week.He said The Kolkata Environmental Improvement Programme (KEIP) had engaged two firms to repair the pumps. Of the two firms, one has become bankrupt and the KEIP has written to the Asian Development Bank (ADB) to cancel the contract of the joint venture companies. It may be mentioned that Chief Minister Mamata Banerjee had called up Mayor Sovan Chatterjee on Sunday, expressing her displeasure over the delay in clearing accumulated water from some streets of Behala. Also Read – Naihati: 10 councillors return to TMC from BJPSome roads, lanes and bylanes at Silpara and Pora Asathwatala are still under water. In Sakherbazar, craters have come up on a stretch of Diamond Harbour Road. The potholes, which are covered with water, pose a serious threat to motorcycle riders and drivers.Senior KMC officials said patch repair will be carried out to cover up the potholes temporarily. Metro Railway is constructing the Joka BBD Bag Metro and because of the construction work, the underground pipeline has been damaged, causing waterlogging in some areas.