How can we prevent massive power failures in Mumbai? | Mumbai Power Cut

Large parts of Mumbai, Thane and Navi Mumbai had faced a power outage on Monday. According to Brihanmumbai Electric Supply and Transport (BEST), the unprecedented electricity cut that was reported after 10 am was because of the failure of a power grid. According to the Maharashtra State Electricity Transmission Company (MSETCL), its 400 kV system at Kalwa tripped and stopped supplying power to Mumbai, Thane, Raigad and Navi Mumbai. Another 400 kV Pune-Kalwa line was under forced shutdown since Sunday for repairs.