DGCA warned IndiGo over December 2025 fares breaching temporary caps, IndiGo issued refunds and corrective steps; no penalty imposed; operations and outlook unchanged. InterGlobe Aviation Limited shares closed at ₹4,567.20, down ₹73.70 or 1.59%, with the closing price at ₹4,556.00, lower by ₹84.90 or 1.83% on the NSE.