Hundreds of passengers were stranded and several fights diverted as heavy fog disrupted operations at the Kolkata airport on Monday morning, officials said.
No flight could take off or land at the Netaji Subhas Chandra Bose International (NSCBI) Airport as a thick blanket of fog engulfed the area.
Passengers were stranded with all the early morning flights departing from Kolkata being rescheduled as visibility was down to 50 metres, officials said.
The flights, which were supposed to land, were diverted to nearby airports, they said, adding that most of the flights were sent to the Ranchi airport.
Operations could be normalised only after 9am after visibility increased, they said.
Kolkata had a cloudy sky even on Sunday. But there was no rain. The gloomy sky played spoilsport to outdoor activities. The footfall at parks and museums also took a beating.
Met suspects a wet spell in Kolkata between February 24 and 25.