Air India's operations were affected on Saturday morning after its server was reported to be down across the world. The SITA server of the airline has not been working across India and overseas since 3.30 am as a result several passengers have been left stranded on airports across the world.

from Times of India https://timesofindia.indiatimes.com/india/air-india-servers-down-flight-operations-affected-across-the-world/articleshow/69067056.cms