Intimation regarding Credit Ratings assigned by CARE Ratings Limited to IRB Infrastructure Developers Limited

October 06, 2026 Corporate Relationship Department, Listing Department, BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers Exchange Plaza, C-1 Block G, Dalal Street, Mumbai 400 001 Bandra Kurla Complex, Bandra (E), Mumbai 400 051 Dear Sir / Ma’am, Ref: Scrip Code: 532947, Symbol: IRB Sub: Intimation regarding Credit Rating under Regulation 30 of SEBI Listing Regulations Pursuant to Regulation 30 read with Schedule III of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“SEBI Listing Regulations”), we wish to inform you that CARE Ratings Limited (“CARE Ratings”) has assigned the following credit ratings to the bank facilities of IRB Infrastructure Developers Limited. Details of Ratings are as follows: Facilities/ Instruments Amount (₹ Crore) Rating Rating Action Long Term Bank Facilities 459.00 CARE AA; Stable Assigned Short Term Bank Facilities 50.00 CARE A1+ Assigned Communication from the rating agency covering the rationale for rating can be viewed at – 202610151015_IRB_Infrastructure_Developers_Limited.pdf We request you to take the above on record. For IRB Infrastructure Developers Limited Mehul Patel Company Secretary