Flight operations at Delhi International Airport were badly hit on Friday after a major technical problem disrupted air traffic control systems. Over 800 flights were delayed, leaving thousands of passengers waiting for hours at the airport.

Officials said the issue started when the Automatic Message Switching System (AMSS), a key part of the Air Traffic Control (ATC), suddenly stopped working. The system handles flight plan data that helps controllers track aircraft. Once it failed, ATC teams had to manage everything manually, which caused major slowdowns in takeoffs and landings.

The Airports Authority of India (AAI) said engineers and technical experts worked non-stop to fix the problem with help from the Electronics Corporation of India Limited (ECIL). The system was finally restored

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