Two coaches of the rake got inside the Netaji Bhavan metro station while others were stranded behind the tunnel, Banerjee said.
Passengers started panicking witnessing electrical flash from the lines while a few of them tried to come out breaking the windows.
It took almost 20 minutes to evacuate all the passengers from the rake and metro officials claimed that no one fell sick.
The flash was mainly because of the snag that led to power trip leading to the metro coming to a halt. We are investigating the matter, she said.
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