Mumbai, June 20 -- The BMC has asked residents of Kurla to boil and filter their water for three to four days from Monday as the civic body switches the water supply from one reservoir tank to another for repairs. On completing structural repairs on Powai reservoir's compartment No. 2 the BMC plans to shift water supply to the tank and begin repairs on the reservoir's compartment No. 1. Water supply will be shifted on Monday, July 23, for those from areas in the L and S ward. As a precautionary measure, the civic body has asked citizens to take extra steps to ensure their water is safe. The areas that will be affected in the L ward are the 90 feet Kurla-Andheri road, Saki Vihar, Satyanagar pipeline road, Ghatkopar-Andheri road, Mahatma Phule Nagar, and Jarimari, Kajupada, Shastri Nagar, Ghas Compound, Kranti Nagar, LBS Marg, and LIG-MIG Colony, and other areas....