Core Viewpoint - The Directorate General of Civil Aviation (DGCA) has issued a show-cause notice to IndiGo's CEO Pieter Elbers due to significant operational disruptions and mass flight cancellations, highlighting lapses in planning and resource management [1][6][7]. Group 1: Operational Disruptions - IndiGo has faced hundreds of flight cancellations and delays recently, primarily attributed to inadequate arrangements for revised staffing and duty-time requirements under the new Flight Duty Time Limitations (FDTL) scheme [6][9]. - The DGCA noted that the airline's operational failures reflect significant lapses in planning and oversight, leading to non-compliance with Aircraft Rules and Civil Aviation Requirements [7][8]. - Major airports reported substantial cancellations, with Hyderabad Airport recording 69 cancellations, Delhi Airport 86, Ahmedabad Airport 59, and Kolkata Airport 41 [10]. Group 2: Response and Apology - CEO Pieter Elbers publicly apologized for the disruptions, acknowledging that previous measures were insufficient and announcing a system reboot to improve operations [11][12]. - IndiGo aims to reduce cancellations to below 1,000 and has already re-established over 95% of its network connectivity, operating to 135 out of 138 destinations [12][13]. - The airline expressed gratitude to customers and partners for their support during this challenging period and reiterated its commitment to rebuilding customer trust [13].