Gurugram Metro Halts For 40 Minutes Amid Power Cut, Commuters Walk On Tracks A massive power outage in Gurugram disrupted daily life on Friday evening after a transformer explosion in Sector 72 triggered a grid collapse. The blackout affected Rapid Metro services for nearly 45 minutes, leaving commuters stranded inside trains, with some passengers seen walking on metro tracks. Officials said an oil leak in a 220 KVA current transformer caused the blast and subsequent fire, disrupting power supply across multiple substations.