India, Feb. 20 -- Flight operations were briefly impacted at Delhi's Indira Gandhi International (IGI) airport on Thursday morning following a global outage of Navitaire - the software used for check-ins at airports, officials said.

According to officials, the servers were down for around an hour early morning, with check-ins impacted for flights between 6.45am and 7.28am. Though restored soon after, officials said there was a cascading effect, with operations gradually returning to normal.

Though no official data was available on how many flights were impacted during the period the server was down, data from the flight tracking website showed that over 400 flights were delayed through Thursday. The airport handles close to 1,520 flight...