ATC system malfunction causes flight delays in Delhi Airport; airlines issue passenger advisory November 07, 2025

New Delhi: Flight operations at Delhi’s Indira Gandhi International Airport (IGIA) were severely disrupted on Friday morning due to a technical malfunction in the Air Traffic Control (ATC) system, leading to widespread delays.

According to the Airports Authority of India (AAI), the issue lies with the Aeronautical Message Switching System (AMSS) — a critical software that processes flight plans — which has reportedly been malfunctioning for at least the past two days.

By 9 a.m. Friday, more than 150 flights had been delayed, with departures running over an hour behind schedule. As aircraft failed to take off on time, the airport began running short of parking space for arriv

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