MUMBAI, Aug. 14 -- Electricity consumers in Mulund, Thane, Navi Mumbai and Kalyan-Dombivli in the Mumbai Metropolitan Region (MMR) and the rest of Maharashtra will have to pay more for power as the Maharashtra State Electricity Distribution Company (MSEDCL) has raised tariffs. The increase, ranging 20-55 paise per unit, is a "fuel adjustment charge" (FAC). For residential consumers using 300 units per month, the monthly bill will go up by Rs.105; for those using 500 units, it will increase by Rs.250. P5...