As many as 900 IndiGo flights across the country were delayed on Saturday due to the non-availability of cabin crew and staff.
The airline continued to face staff-related issues on Sunday as well, it added.
Meanwhile, the Directorate General of Civil Aviation (DGCA) has taken strong cognizance against IndiGo and sought a clarification/ explanation behind the massive flight delays nationwide, DGCA officials
Reportedly, IndiGo operates around 1600 flights on a daily basis.
