Union Civil Aviation Minister Ram Mohan Naidu on Monday (December 8) said the IndiGo crisis happened due to problems in its crew rostering and internal planning system.

Over 300 IndiGo flights were cancelled today, impacting thousands of passengers. The airline has been facing a difficult time since last week, as over 1600 flights were cancelled during this time.

Naidu mentioned that the new Flight Duty Time Limitations (FDTL) rules came into place on November 1, and due process was done. The FDTL rules were implemented in April after a high court order.

There were 22 FDTL guidelines — 15 from July 1 and seven from November 1.

"We made clear to airlines that all have to follow the rules. IndiGo was supposed to manage its crew roster. The DGCA sat with all airlines after the safety risk

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