India, Dec. 11 -- The Union government appeared to harden its stance against embattled airline IndiGo on Thursday as civil aviation minister Ram Mohan Naidu blamed the airline's "gross mismanagement" and issues with the crew rostering system for the scheduling meltdown that affected millions of flyers this month.

The comments came on a day IndiGo chief executive officer Pieter Elbers appeared before the Directorate General of Civil Aviation (DGCA) and was asked to come back on Friday before the regulator's four-member committee.

After 10 days of scrapped flights, stranded passengers, and airports overflowing with misdirected pieces of baggage, cancellations continued on Thursday, with the airline cancelling 200 pre-planned flights and 6...