A major technical glitch hit the Air Traffic Control (ATC) system, affecting nearly 800 flights at Delhi's Indira Gandhi International Airport on Thursday evening, disrupting flight planning and causing a ripple effect across multiple airports.

What caused technical glitch that delayed flights at Delhi airport?

The issue originated in the Automatic Message Switching System (AMSS), a critical system that automatically receives, processes, and routes flight plan data to the ATC data network. Its failure meant controllers lost access to automated flight plan data, and every flight plan had to be generated manually. Flightradar24 reported 513 delayed flights on Thursday, growing to nearly 800 by Friday, with average departure delays of 45 minutes to an hour. Arrivals were also delayed due to

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