Detection of smoke from under a Metro coach at M G Road station affected underground railway services in the city on Monday evening, a Metro spokesperson said.
Passengers were evacuated from the train following detection of smoke at 6.28 pm, Metro chief public relations officer Indrani Banerjee said.
Though truncated services were maintained between Maidan and Kavi Subhash stations in the south, thousands passengers were inconvenienced owing to the glitch in the rake in the Up line at M G Road in the heart of the city.
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