India, Dec. 9 -- IndiGo on Monday apologised for the nationwide aviation disruption caused by the carrier while seeking more time to respond to a show cause notice issued by the sector regulator. The Directorate General of Civil Aviation (DGCA) had given the airline, its CEO and COO time till 6pm Monday evening to respond to its notice issued on Saturday.

In its response, the airline has claimed it is "realistically not possible to pinpoint the exact cause(s)" in the timeline issued by the DGCA. It also noted that the regulator's manual allows a 15-day response time for show-cause notices.

The airline further claimed that the disruption was the result of compounding effect of multiple factors that came together in an unfortunate and unf...