New Delhi, Nov. 8 -- Flight operations at Indira Gandhi International Airport (IGI), Delhi, are gradually returning to normal a day after massive delays disrupted both domestic and international services due to a technical issue in the Automatic Message Switching System (AMSS), which supports the Air Traffic Control (ATC) flight planning process.

On Saturday morning, Delhi Airport issued an advisory stating that the situation is gradually improving, and the airline operations are returning to normal and all concerned authorities are working to minimize passenger inconvenience.

The technical issue, which began on November 6, was caused by a fault in the AMSS system that temporarily affected the processing of flight plan messages. This led ...