Four flight operation inspectors (FIOs) were suspended by aviation authority DGCA on Friday due to IndiGo flight cancellations that left thousands of customers stranded at airports. These personnel are in charge of operational compliance, pilot training, and airline safety.
Their suspension precedes Pieter Elbers, the CEO of IndiGo, who is scheduled to appear before the aviation authority today.
The development followed days of widespread IndiGo flight cancellations throughout India, with over 1,600 cancellations in a single day last Friday.
The failure of IndiGo to execute the second phase of the Flight Duty Time Limitations (FDTL), which went into effect in November, was largely blamed for the disruptions. The airline's "mismanagement" and handling of its crew roster were also held accountable by the government.

The government took significant actions, such as establishing a deadline for refunds and directing other airlines to control their flight ticket pricing, as cancellations continued to interfere with travellers' plans.
On Thursday, when more than 200 flights were cancelled at airports in Delhi and Bangalore, DGCA officials reportedly set up shop at IndiGo's headquarters to keep an eye on the company's operations.
In response to the flight interruptions, the government also mandated that the airline, which is the largest domestic carrier in India, reduce its daily operations by 10%. IndiGo has stated that it anticipates operating 1,950 flights with approximately 3 lakh passengers, according to news agency PTI.

During the winter, the airline often flies 2,300 flights each day.
Since the interruptions started on December 2, there have been about 5,000 aircraft cancellations at Indian airports. Notably, Ram Mohan Naidu, the minister of civil aviation, recently informed the Parliament that the carrier failed to report any problems during a meeting that took place just one day before the interruptions began.