An Alliance Air flight from Kolkata to Silchar returned to the airport soon after take off due to a false fire alarm on Saturday.
The ATR-42 plane of Alliance Air, a subsidiary of the Indian airlines, took off at 10.30 am but had to return when a fire indication was noticed, a spokesman of the Indian said.
The aircraft landed at the NSC Bose International Airport with 37 passengers at 10.40 am amidst the emergency drill.
However, after check up, the alarm was found to be false, the spokesman said adding all the passengers were safe.
The incident delayed the flight by about 2.30 hours.