Aviation regulator Directorate General of Civil Aviation (DGCA) is investigating the widespread disruption plaguing the flight operations of India’s largest airline IndiGo. The regulator has also asked IndiGo to detail the reasons behind the large number of flight delays and cancellations, and sought a plan from the carrier to mitigate the crisis.

Over 150 IndiGo flights are estimated to have been cancelled on Wednesday, with many more facing long delays at airports across India. IndiGo has been hit with flight disruptions over the past few days due to a combination of factors—primarily crew shortage being faced by the carrier following the implementation of new crew rest and duty norms. Additionally, some technology-related issues and congestion at airports has added to the cascading del

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