Services like booking, check-in and boarding processes, including issuance of boarding passes, are being carried out manually, at Hongkong International Airport

The airport staff had to hold up a final call sign at Hongkong International Airport as some airlines resort to manual check-in

Meanwhile, the passengers at Gatwick Airport had to wait for hours as some flights were cancelled or delayed, in Horley in south of London

Airports including London Luton, Belfast and Edinburgh warned of longer waiting times for passengers because of the glitch

In India, the impact was more on passengers flying out of high-density airports like Delhi, Mumbai, Bengaluru and Chennai

According to preliminary data by aviation analytics firm Cirium on the global IT disruption, 56 flight were cancelled out of 3,652 flights scheduled from Indian destinations. This does not include inbound flights to India

Union Civil Aviation Minister Ram Mohan Naidu assured the passengers that the ministry and Airports Authority of India (AAI) are actively managing the situation using manual methods to ensure minimal disruption

Air India Express, SpiceJet and Akasa have taken proactive measures by initiating manual check-ins to ensure minimal disruption to passengers and flight schedules

Amid a massive global outage that hit operations of airlines, banks and businesses across the globe, Microsoft on Friday said it is aware of the issue affecting Windows devices due to an update from a third-party software platform