IndiGo, India’s largest airline, has cancelled all domestic flights from Delhi Airport as an unprecedented operational crisis enters its fourth day. The disruption, affecting over 1,000 flights across major Indian cities, stems from crew shortages and recent Flight Duty Time Limitation (FDTL) rule implementations by aviation regulators. The airline apologized to stranded passengers and expects progressive improvement starting December 6, with full service restoration targeted for February 10, 2025. Tensions have escalated at airports as frustrated passengers confront staff.