India, Nov. 9 -- The recent system failure at Delhi's Indira Gandhi International Airport on Friday may not have been entirely unforeseen, an organisation of air traffic controllers reportedly said. The group claims that Delhi airport authorities were warned about such vulnerabilities months ago.

According to an NDTV report, ATC Guild of India, an organisation representing air traffic controllers, flagged the need for upgrades to the Airports Authority of India (AAI) back in July, emphasising that the existing automation systems were outdated and in urgent need of upgradation.

However, they alleged their suggestions were not acted upon.

The guild said they also wrote to MPs on July 8, following the Air India plane crash in Ahmedabad th...