A part of the revenue has been bypassing the Calcutta airport since Pakistan closed its airspace in the aftermath of India’s air strike in Balakot.
The diversion of the revenue is on account of Europe-bound overflying flights being forced to take a different route or being cancelled because of the curb imposed by Pakistan, officials said on Monday.
Pakistan’s civil aviation authorities had closed their airspace on February 27, a day after the Balakot strike.
The civil aviation authorities of that country had announced in a notification that the bar would remain in force till 1.30pm (India time) on Monday. They later announced that it would be lifted at 3.30pm (India time) on Tuesday, sources said.
