IRB Invit Fund has informed the Exchange regarding Disclosure of material issue

September 29, 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 / Madam, Ref.: Scrip Code: 540526, Symbol: IRBINVIT Sub.: Update on Acquisition of assets from IRB Infrastructure Trust (“Private InvIT”) We refer to our earlier disclosures dated May 14, 2026, and July 2, 2026, and approval of the unitholders of IRB InvIT Fund (“Trust”) accorded on August 3, 2026, with respect to proposed acquisition by the Trust of the 100% equity share capital of Solapur Yedeshi Tollway Limited (“SYTL”) and CG Tollway Limited (“CGTL”) (collectively referred as “Project SPVs”) from IRB Infrastructure Trust (“Private InvIT”) and entering into project implementation agreement(s) with IRB Infrastructure Developers Limited (“Sponsor”) in relation to the Project SPVs. In this regard, please note that the Trust / Investment Manager on behalf of the Trust has executed Project Implementation Agreement(s) pursuant to which the Sponsor will act as the Project Manager for the Project SPVs of the Trust. The details of the transaction is annexed herewith as “Annexure – I.” You are requested to take note of the same. Thanking you. Yours faithfully, For IRB Infrastructure Private Limited (Investment Manager to IRB InvIT Fund) Swapna Arya Company Secretary and Compliance Officer Membership Number – A32376 Encl.: As above IDBI Trusteeship Services Limited Ground Floor, Universal Insurance Bldg, Sir Phirozshah Mehta Rd., Fort Mumbai 400 001 Annexure I Details of the transaction Sr. Particulars Details a) name(s) of parties with whom the IRB InvIT Fund (the “Trust”) has entered into project agreement is entered; implementation agreement(s) with IRB Infrastructure Developers Limited (“Project Manager” or “Sponsor”) and each of Solapur Yedeshi Tollway Limited (“SYTL”) and CG Tollway Limited (“CGTL”) (collectively, referred as “Project SPVs”). The Trust has also entered into shareholder loan agreements and facility agreements each dated September 28, 2026, with each of the Project SPVs and certain ancillary agreements are proposed to be executed in this regard, in connection with the transaction. b) purpose of entering into the The Trust is entering into the project implementation agreement; agreements for each of: a) Solapur Yedeshi Tollway Limited (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. b) CG Tollway Limited (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 No holding with whom the agreement is executed. whom the agreement is executed; The Sponsor holds 16.12% into the Trust. d) significant terms of the agreement (in Not Applicable brief) special rights like right to appoint directors, first right to share subscription in case of issuance of shares, right to restrict any change in capital structure etc.; e) Whether the said parties are related to Trust is sponsored by IRB Infrastructure Developers promoter/promoter group/ group Limited (the Sponsor). companies in any manner. If yes, nature of relationship; f) whether the transaction would fall The Sponsor is a related party of the Trust. Accordingly, within related party transactions? If since the Sponsor is proposed to be appointed as Project yes, whether the same is done at Manager for the implementation of the aforesaid “arm’s length” projects, such appointment would be a related party transaction. The proposed related party transaction is at arms-length. g) in case of issuance of shares to the None 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 Not Applicable of 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.