IndiGo said its operations have been significantly disrupted across the network for the past two days, attributing the turbulence to a series of unforeseen challenges that have strained schedules and impacted services. The airline cited tech glitches, schedule changes, weather conditions, increased congestion in the aviation system, and the implementation of updated crew rostering rules as key reasons behind the disruption.

To restore stability, IndiGo said it has initiated calibrated adjustments to its schedules, adding that these measures will remain in place for the next 48 hours and are expected to help normalise operations.

The crisis follows the cancellation of nearly 200 flights across Delhi, Mumbai, Hyderabad and Bengaluru in recent days due to complications arising from the rollout of new flight duty-time limitation (FDTL) norms, sources told NDTV.

Here are the reasons behind the chaos: