InterGlobe Aviation Limited — Capital/Financing Update 2025

Dec 10, 2025

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Date: December 10, 2025

IGAL/SECT/12-25/21

To To National Stock Exchange of India Limited Department of Corporate Services Exchange Plaza, C-1, Block G BSE Limited Bandra Kurla Complex, Bandra - (E), Phiroze Jeejeebhoy Towers Mumbai - 400 051 Dalal Street Symbol: INDIGO Mumbai - 400 001 Scrip Code: 539448

Subject: Disclosure under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“SEBI Regulations”)

Dear Sir/ Madam,

Please find enclosed the press release being issued by the Company, the contents of which are self-explanatory.

This disclosure is also being made available on the Company’s website at www.goindigo.in.

This is for your information and record.

Thanking you,

For InterGlobe Aviation Limited

Digitally signed by: NEERJA SHARMA NEERJA DN: CN = NEERJA SHARMA C = IN O = Personal Date: 2025.12.10 21:25:58 + SHARMA 05'30' Neerja Sharma Company Secretary & Chief Compliance Officer

Encl: a/a

InterGlobe Aviation Limited

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Registered Office: Upper Ground Floor, Thapar House, Gate No. 2, Western Wing, 124 Janpath, New Delhi – 110 001, India. M +91 9650098905, F + 91 11 43513200 Email: corporate@goindigo.in Corporate Office: Emaar Capital Tower-II, Sector-26, Sikanderpur Ghosi, MG Road, Gurugram-122002, Haryana, India. T +91 124 435 2500. CIN no.: L62100DL2004PLC129768

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Press Release IndiGo updates guidance for Q3 FY 2025-26

National, December 10[th] , 2025: This is in continuation of our previous disclosures made under Regulation 30 of SEBI (LODR) Regulations, 2015 in relation to the recent operational disruptions.

While IndiGo has reinstated its operations across its optimized network, during the first week of December we experienced significant disruption in our operations. Measures undertaken to reset our operations resulted in cancellation of around 4,500 flights during that week. These cancellations have resulted in loss of revenue and we also continue to provide passenger support services for the operational disruptions for which additional expenses are being incurred.

On December 9[th ] 2025, DGCA has notified IndiGo to curtail scheduled flights for the Domestic Winter Schedule 2025 by 10%. This will have an impact on our capacity guidance for Q3FY 2025-26, Q4FY 2025-26 and FY 2025-26. We are in the process of complying with the DGCA notice and will provide impact on our capacity guidance for Q4FY26 and FY26 subsequently.

In view of above, we continue to monitor the revenue environment, and the overall financial impact cannot be quantified at this stage. However, based on our current estimates we expect a downward moderation to our earlier communicated Q3 2025-26 guidance on a year over year comparison basis as below:

Particulars		Earlier guidance for Q3 FY2025-2604thNovember 2025		Revised guidance for Q3 FY2025-2610thDecember 2025
Capacity (In terms ofASKs) - % change		High teens growth in ASKs		High single to early double-digit (%)growth in ASKs
Passenger unit revenues(PRASK)- % change		Flattish to slight growth		Mid-single digit (%) downwardmoderation

IndiGo remains committed to assisting our customers, addressing their queries and requests on a war footing. We would like to reiterate that all our operations are fully compliant with the relevant FDTL norms and safety regulations, as they have been throughout the last two decades.

We request all our customers to check the latest flight status at https://www.goindigo.in/check-flight-status.html before reaching the airport. Refund assistance, if any, can be sought at https://www.goindigo.in/refund.html or through our customer support. We regret this disruption and apologize sincerely to all our customers.

About IndiGo

IndiGo is India’s preferred and amongst the fastest growing carriers in the world. IndiGo has a simple philosophy: offer fares that are affordable, flights that are on time, and provide a courteous and hassle-free travel experience across its unparalleled network. With its fleet of 400+ aircraft, the airline operates around 2300+ daily flights, connecting 90+ domestic and 40+ international destinations, inducted 58 aircraft in 2024 and welcomed over 118 million customers in FY25. IndiGo was also named the ‘Best Airline in India and South Asia’ by Skytrax at the World Airline Awards 2025.

For more information, please visit http://www.goindigo.in/ or download our mobile app. Facebook | Twitter | Instagram