After Mumbai residents awoke to no electricity on Sunday morning, BMC Commissioner Iqbal Singh Chahal confirmed that the power outage was being experienced due to tripping at the Tata Power plant. BMC said work was on to restore power to the island city shortly, and it might take at least an hour for electricity to be restored in all areas.“Due to tripping of MSEB 220 KV Transmission line on Mulund-Trombay, the power supply to most of parts Mumbai has affected, as informed by the Head of Electric Supply Division of BEST,” he said.BEST in an official statement said, “because of Tata’s grid failure, there is no electricity in Sion, Matunga, Parel, Dadar, CSMT, Byculla, Churchgate, and other areas. The restoration work is currently underway.”Western Railways said no power supply was being experienced between Andheri and Churchgate from 9:42 AM, and that local train movement was affected.The power outage is limited to the island city, with BEST serving as the electricity distribution company. Adani, Tata Power, and Msedcl supply in other parts of Mumbai, Thane, Navi Mumbai, and the rest of the state is normal, reports said.Mumbai city awoke on Sunday with no electricity, and residents from South Bombay to Chembur and Govandi complained about the widespread power outage. Surrounding areas too experienced widespread electricity failure.Before this, Mumbai had witnessed a similar power outage in October, 2020. Speculations were rife at the time of a potential cyber attack being the reason behind the outage.The Maharashtra government had then formed an eight member committee to investigate the power outage, which was headed by Professor Fernandes, IIT-Mumbai, Dept of Electrical Engineering.The committee submitted its report in November, 2020 and cited cascade tripping as the reason and ruled out the cyber sabotage angle. The committee report mentioned that due to heavy rains that year, the Talegaon-Kalwa line had been damaged, leading to burdening other three lines, which had resulted in the power outage on October 12 in 2020. But in March 2021, A US-based company issued a report mentioning some unidentified Chinese entities being in involved in the power outage. After that, the Maharashtra government ministers also made statements of a foreign hand being responsible for the power outage. More probes were ordered by the Centre and state government, the reports of most of which are pending.Read all the Latest News, Breaking News and Assembly Elections Live Updates here.