Metro services were disrupted between 9.53 AM to 10.08 AM. The power glitch affected mostly the northern parts of the city, according to CESC officials.
There was no information about any major load-shedding in hospitals, they said.
Restoration process began immediately and the power supplies were restored within 15 minutes of the glitch.
"All supplies have been restored by about 10.30 AM, officials said.
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