India’s biggest carrier, IndiGo, is facing one of its worst operational breakdowns in recent times, with over 200 flights cancelled and several hundred more delayed across major airports on Tuesday and Wednesday. The crisis stranded thousands of passengers, caused long queues at terminals, and ignited concerns over what triggered the sudden collapse of operations. Factors driving the disruption include crew shortages, revised duty-time regulations, technical snags at critical airports, and heavy winter traffic congestion.