"We are glad that we are back to our normal schedule and our Dhaka/London flights are again heavily booked from February 4 onwards," said AK Mitra, manager (Bangladesh) of Air-India.

The airline was forced to reschedule its Delhi-Dhaka-Kolkata flights for a short period to enable it to maintain the slot timing allotted to it at London Heathrow due to the adverse weather conditions in New Delhi and Dhaka, says a press release.

The Dhaka-London passengers were taken to Kolkata by a special feeder flight of GMG Airlines to connect the London flight at Kolkata. However, the London-Kolkata-Dhaka-Delhi flights of Air-India operated as per schedule, according to the release.