Monday morning power grid failure has affected the normal supply of water in various parts of Mumbai, prompting the civic body to ask citizens to use water judiciously.<br />'' <br />''A rare citywide power outage earlier in the day had a cascading effect on various services, including local trains, in the financial capital.<br />'' <br />''<span style="color: #222222;">The Brihanmumbai Municipal Corporation (BMC) said that the power supply to Bhandup-based water purification plant was affected for a few hours due to which several areas received water at a low pressure.</span><br />