Mumbai/IBNS, Dec. 9 -- InterGlobe Aviation, the parent company of IndiGo, faced a sharp market setback as the airline reeled from a week-long disruption in flight operations caused by a shortage of cockpit crew, according to media reports.

Business Today reported that the stock has already declined nearly 18% in December 2025 alone.

IndiGo admitted that it failed to adequately prepare for the implementation of the revised Flight Duty Time Limitation (FDTL) norms for pilots, which became effective on November 1.

The new rules impose stricter restrictions on night flying and mandate weekly rest, requiring airlines to overhaul crew rosters. IndiGo's inability to realign schedules in time led to a cascading operational crisis marked by cre...