IndiGo airline has been dealing with what it calls an "operational crisis" since the start of the week. Things hit rock bottom on Friday, when more than 1,000 flights were cancelled in a single day. Major airports in Delhi, Hyderabad, and Bengaluru saw the worst of it, with passengers stranded and scrambling for alternatives.

What's causing all this?

IndiGo initially pointed to several reasons: minor technical issues, changes to winter flight schedules, and bad weather. But aviation experts and regulators tell a different story.

The real problem, they say, is the airline's struggle to follow new Flight Duty Time Limitation rules. These regulations were introduced in January 2024 to make sure pilots and crew get enough rest, helping prevent fatigue-related incidents. While the rules have

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