Updates

Date: September 30, 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 Subject: Update on Transfer of two Projects from IRB Infrastructure Trust to IRB InvIT Fund We refer to our earlier disclosure dated September 29, 2026. Please find enclosed a copy of an update provided by IRB Infrastructure Trust (“Private InvIT”) with respect to completion of the transfer of 100% of equity share capital of Solapur Yedeshi Tollway Limited (“SYTL”) and CG Tollway Limited (“CGTL”) by Private InvIT to IRB InvIT Fund (“Public InvIT”). You are requested to kindly take note of the same. For IRB Infrastructure Developers Limited Mehul Patel Company Secretary Encl. as above Date: September 30, 2026 National Stock Exchange of India Limited Exchange Plaza Plot no. C/1, G Block Bandra-Kurla Complex, Bandra (East) Mumbai 400051 Dear Sir/Ma’am, NSE Symbol: IRBIT / Series: IV Sub.: Update on Transfer of two Projects to IRB InvIT Fund We refer to our disclosure dated September 22, 2026, and earlier disclosures with reference to transfer of 100% of the equity share capital of Solapur Yedeshi Tollway Limited and CG Tollway Limited (collectively hereinafter referred as to “Project SPVs”) to IRB InvIT Fund, a publicly offered and listed infrastructure investment trust (“Public InvIT”). This is to inform that IRB Infrastructure Trust has transferred 100% of the equity share capital of each of the Project SPVs to Public InvIT. You are requested to kindly take note of the same. For MMK Toll Road Private Limited (in its capacity as Investment Manager to IRB Infrastructure Trust) Kaustubh Digitally signed by Kaustubh Purushotta Purushottam Shevade Date: 2026.09.30 m Shevade 18:38:39 +05'30' Kaustubh Shevade Company Secretary and Compliance Officer