NEW DELHI: The directorate general of civil aviation (DGCA) has issued a show cause notice to IndiGo over alleged lapses in simulator training for nearly 1,700 pilots, PTI reported quoting sources on Tuesday.The notice was sent after the regulator scrutinised records and reviewed IndiGo’s responses submitted last month.Confirming that the airline is currently reviewing the show-cause notice, an IndiGo spokesperson said, “We confirm receipt of a show-cause notice issued by the DGCA pertaining to simulator training of some of our pilots. We are in process of reviewing the same and will respond to the regulator within the stipulated timeline.”“We remain committed to ensuring the highest standards of safety and compliance across our operations,” the airline added.DGCA has alleged that IndiGo conducted Category C or critical airfield training for nearly 1,700 pilots, including both captains and first officers, on simulators that were not qualified for certain high-risk airports, sources told PTI.The sources added that these simulators were unfit for operations at airports such as Calicut, Leh, and Kathmandu. Airports like Calicut, which has a tabletop runway, require additional training and operational safeguards due to their challenging terrain and approach conditions.