India, Dec. 3 -- Aviation watchdog DGCA on Wednesday said it is investigating IndiGo flight disruptions after at least 150 flights were cancelled and several others were delayed at major airports across the country due to what the airline described as "technical glitches and operational issues".

The Directorate General of Civil Aviation (DGCA) also asked the airline to submit the reasons for the current situation, as well as its mitigation plans in this regard.

Several airports and numerous services were delayed as IndiGo grappled with significant operational disruptions, mainly due to crew shortage. Apologising for the disruptions, the airline announced that it had initiated calibrated adjustments to its schedule for the next 48 hours ...