The FIOs' suspension comes ahead of IndiGo CEO Pieter Elbers' expected appearance before the aviation regulator today.

Aviation watchdog DGCA on Friday suspended four flight operation inspectors (FIOs) over mass cancellations of IndiGo flights that left thousands of passengers stranded at airports. These officials are responsible for airline safety, pilot training and operational compliance.

Their suspension comes ahead of IndiGo CEO Pieter Elbers' expected appearance before the aviation regulator today.

The development came after days of rampant cancellations of IndiGo flights across India, the highest impact seen last week on Friday with over 1,600 cancellations in a single day.

The disruptions were widely attributed to IndiGo's failure in implementing the second phase of the Flight

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