InterGlobe Aviation, the parent of IndiGo, has seen a sharp stock decline of nearly 17% over eight days following widespread flight cancellations linked to new pilot duty norms. Mutual funds hold significant exposure to the stock, with ICICI Prudential, SBI, and HDFC among the largest investors. IndiGo has responded to the DGCA’s show-cause notice, citing revised duty norms and minor technical issues as key factors behind over 2,000 cancellations in the past week.