The passengers of the Delhi-bound train from Guwahati, which arrived at the Malda town station at about 4 am, pulled the chain when it was leaving the platform.
They alleged that no action had been taken even after their complaints at Siliguri and Malda railway stations, GRP Inspector-in-charge of Malda town station Partha Chanda said.
After partial repair of AC units, the passengers boarded the train which resumed journey at about 8 am, he said.
Train services were disrupted in the section for hours following the incident, he said.
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