India, Dec. 4 -- The hundreds of IndiGo flight cancellations and delays wasn't triggered by one factor but is a consequence of a domino effect that has bought India's largest airline to its knees.

Disruptions triggered by the Airbus A320 issues snowballed into a chaos after a court upheld implementation of the so-called Flight Duty Time Limitations, which allow pilots and crew to get enough rest in between flight operations. First introduced in January 2024 but not implemented since then, airlines were hoping for another extension from the effective date of 1 November 2025.

That, however, wasn't to be.

(Update: At last count, more than 300 IndiGo flights were cancelled across major airports in India on Thursday. More than 150 were canc...