Agreements

Date: July 2, 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: Disclosure with respect to Project Implementation Agreements with IRB InvIT Fund and its Projects SPVs to act as the Project Manager. We wish to inform that the Board of Directors of the Company (“Board”) at its meeting held today i.e. July 2, 2026, inter-alia, approved to enter into Project Implementation Agreements (“PIA”) with IRB InvIT Fund (“Public InvIT”) and the respective project SPVs, to act as the Project Manager of the Public InvIT, in pursuance of the Securities and Exchange Board of India (Infrastructure Investment Trusts) Regulations, 2014, as amended (“SEBI InvIT Regulations”), in connection with the projects operated by Solapur Yedeshi Tollway Limited (“SYTL”) and CG Tollway Limited (“CGTL”) (collectively referred as “Project SPVs”), as the Project SPVs of the Public InvIT, for approximately Rs.2,663 crore on fixed price basis (inclusive of applicable taxes) over the balance concession period for the Project SPVs, which is approx. 18 years on weighted average life, on the key commercial terms and on such other terms and conditions as may be agreed among the parties. Such appointment is proposed to be effective upon completion of the transfer of 100% of the equity share capital of each of the Project SPVs from IRB Infrastructure Trust to the Public InvIT. The details of the aforesaid approval for execution of project implementation agreements to act as Project Manager, as required in pursuance of SEBI circular no. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, as amended, is annexed herewith as Annexure I. You are requested to kindly take note of the same. For IRB Infrastructure Developers Limited Mehul Patel Company Secretary Encl. as above Annexure 1 Details of Project Implementation Arrangement a) name(s) of parties with whom the 1. Solapur Yedeshi Tollway Limited (“SYTL”), agreement is entered; 2. CG Tollway Limited (“CGTL”) (collectively referred to as “Project SPVs”) b) purpose of entering into the agreement; The Company is proposing to enter into the project implementation agreement (“PIA”) for: 1. SYTL: Four Laning of Solapur to Yedeshi section of NH-211 from km 0.000 to km 100.000 (Design Length 98.717 km) in the State of Maharashtra under NHDP Phase IV on Design, Build, Finance, Operate and Transfer (DBFOT) Toll basis. 2. CGTL: Six Laning of Kishangarh Udaipur Ahmedabad Section from km 90.000 (near Gulabpura) to km 214.870 (end of Chittorgarh Bypass) of NH-79 in the State of Rajasthan Package-2 under NHDP Phase – V on BOT (Toll) mode. c) shareholding, if any, in the entity with None. whom the agreement is executed; d) significant terms of the agreement (in Approximately, Rs.2,663 crore on fixed price basis brief) special rights like right to (inclusive of applicable taxes) over the balance appoint directors, first right to share concession period, which is approx. 18 years on subscription in case of issuance of weighted average life. shares, right to restrict any change in capital structure etc.; e) Whether the said parties are related to No, the said parties are not related to promoter / promoter/promoter group/ group promoter group / group companies in any manner. companies in any manner. If yes, nature of relationship; f) whether the transaction would fall It is not a related party transaction under the SEBI within related party transactions? If (Listing Obligations and Disclosure Requirements) yes, whether the same is done at “arm’s Regulations, 2015. length” g) in case of issuance of shares to the Not Applicable parties, details of issue price, class of shares issued; h) any other disclosures related to such Not Applicable agreements, viz., details of nominee on the board of directors of the listed entity, potential conflict of interest arising out of such agreements, etc.; i) in case of termination or amendment of Not Applicable agreement, listed entity shall disclose additional details to the stock exchange(s): i. name of parties to the agreement; ii. nature of the agreement; iii. date of execution of the agreement; iv. details of amendment and impact thereof or reasons of termination and impact thereof.