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

September 25, 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.: Allotment of units by IRB InvIT Fund (“Trust”) through Preferential Issue In furtherance of our letter dated August 26, 2026, the unitholder resolution dated September 21, 2026 and pursuant to applicable provisions of the Securities and Exchange Board of India (Infrastructure Investment Trusts) Regulations, 2014 read together with the circulars, notifications, clarifications and guidelines issued thereunder, each as amended (“InvIT Regulations”), in relation to the approval for issuance of units through preferential issue, we hereby inform you that Committee of Directors of the IRB Infrastructure Private Limited, the Investment Manager, at their meeting held on September 25, 2026 has approved allotment of 54,000,000 units at an issue price of INR 65/- per Unit, i.e., price as determined in accordance with the paragraph 7.5.A of Chapter 7 of the Master Circular for Infrastructure Investment Trusts (InvITs) dated July 11, 2025, as amended, for an aggregate amount of up to INR 3,51,00,00,000 (Indian Rupees Three Hundred fifty one crore) to the following allottee on a preferential basis for cash consideration: Sr Name of the Allottees Category (Sponsor and Number of Aggregate No. Sponsor Group / Non - Units subscription amount Sponsor) (INR) 1. IRB Infrastructure Sponsor 54,000,000 3,51,00,00,000 Developers Limited Further, the allotted units shall rank pari-pasu, in all respects with existing units of the Trust. The allotted units shall be subject to applicable lock-in requirements under the InvIT Regulations. 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 & Compliance Officer Membership Number – A32376 IDBI Trusteeship Services Limited Ground Floor, Universal Insurance Bldg, Sir Phirozshah Mehta Rd., Fort Mumbai 400 001