With Microsft servers going down, tampered the overall functioning around the world too.

We are so technologically dependent for everything that was felt by everyone. What happened at Airports was also nothing less than a chaos.

From manual check-ins at airports leading to serpentine queues, handwritten boarding passes, delayed and cancelled flights, and the dead blue screen on Windows computers - a disruption in a major cybersecurity softwaretied to the Windows operating system and cloud service brought the world to a virtual halt on Friday.

India's largest airliner Indigo and its peers Air India, SpiceJet and Akasa Air reported flight delays and cancellations, and several passengers were even issued hand-written boarding passes.

Thousands of businesses across multiple geographies, spanning sectors such as aviation, banking and broadcasting, faced a severe service outage due to a faulty code update on their PCs, knocking down the usual flow of their work for several hours.

In India, the impact of the outage was most pronounced in the aviation sector, with hundreds of flights delayed and several cancelled as airline operators found their systems inoperational and had to switch to manual processes. At least ten banks and NBFCs had "minor disruptions", which have either been resolved or are being resolved, the Reserve Bank of India said, adding that overall, India's financial sector remained insulated from the global outage.

Major US carriersincluding Delta, United and American Airlines had flights grounded by authorities. Airlines in Europe and Asia-Pacific region also reported disruptions. A Reuters report said that operations at the London Stock Exchange were impacted as well.

Microsoft said that a preliminary cause of this disruption was a configuration change that was done.