Delhi’s Indira Gandhi International Airport (IGIA), India’s busiest airport with over 1,500 daily flight movements, experienced significant disruptions on November 7 (Friday), due to a technical fault in the Air Traffic Control (ATC) system. The issue originated on the evening of November 6 (Thursday) when the Automatic Message Switching System (AMSS), responsible for supplying critical flight plan data to the Auto Track System, started malfunctioning. As a result, air traffic controllers were forced to prepare flight plans manually, a slower and more labor-intensive process, which led to extensive delays and congestion both on the ground and in the air.
