Indigrid Infrastructure Trust has informed the Exchange regarding Disclosure of material issue

INDIGRID INVESTMENT MANAGERS LIMITED Date: September 26, 2026 B S E Limited National Stock Exchange of India Ltd Department of Corporate Services Listing Department Phiroze Jeejeebhoy Towers Exchange Plaza, C/1, Block G, Bandra-Kurla Dalal Street, Mumbai — 400 001 Complex, Bandra (East), Mumbai — 400 051 Security Code- 540565 Symbol- INDIGRID Sub: Intimation of execution of Securities Purchase Agreement(s) for acquisition of Luhri Power Transmission Limited Dear Sir/ Madam, Pursuant to Regulation 23(6)(a) and/ or any other applicable provisions of the Securities and Exchange Board of India (Infrastructure Investment Trusts) Regulations, 2014, as amended from time to time read with circulars and guidelines issued thereunder (“InvIT Regulations”), and other applicable laws and regulations, we hereby inform you that IndiGrid Infrastructure Trust (“IndiGrid”) has executed Securities Purchase Agreement(s) dated September 25, 2026, for the acquisition of Luhri Power Transmission Limited (“Project or LPTL”), from Enerica ReGrid Infra Private Limited (“EnerGrid”), having a common director, or any group entity of EnerGrid, in one or more tranches, post becoming completed and revenue generating project at an enterprise value not exceeding INR 13,360 million, subject to closing adjustments on acquisition date, in accordance with Transmission Service Agreement (“TSA”) along with the lock-in restrictions thereunder. The proposed acquisition is subject to the approval of the unitholders of IndiGrid. The disclosure of the proposed acquisition is enclosed hereto as Annexure-A. You are requested to take the same on your record. Yours sincerely, For and on behalf of IndiGrid Investment Managers Limited Representing IndiGrid Infrastructure Trust as its Investment Manager Urmil Shah Company Secretary & Compliance Officer ACS-23423 Axis Trustee Services Limited The Ruby, 2nd Floor, SW 29 Senapati Bapat Marg, Dadar West, Mumbai 400 028, Maharashtra, India IndiGrid Investment Managers Limited Registered & Corporate Office: Unit No. 101, First Floor, Windsor, Village KoleKalyan, off CST Road, Vidyanagari Marg, Kalina, Santacruz (East), Mumbai – 400 098, Maharashtra, India CIN: U28113MH2010PLC308857 Ph: +91 72084 93885 | Email: complianceofficer@indigrid.com | www.indigrid.co.in INDIGRID INVESTMENT MANAGERS LIMITED Annexure A Details of Asset Proposed to be Acquired S. No. Particulars Details 1. Name of the target entity, details in brief such Name: Luhri Power Transmission Limited (“LPTL”) as size, turnover etc. Paid up capital: INR 5,00,000 Turnover: Nil (currently under construction) 2. Whether the acquisition would fall within In accordance with Regulation 2(1)(zv) of the InvIT Regulations, related party transaction(s) and whether the Terralight Solar Energy Tinwari Private Limited (“TSETPL”) promoter/ promoter group/ group companies being group entity of EnerGrid having a common director with have any interest in the entity being acquired? the Investment Manager of IndiGrid is a related party. If yes, nature of interest and details thereof and whether the same is done at “arm’s The transaction will be completed at an arm’s length price and length” as per the valuation report taken as per InvIT Regulations and subject to compliance with InvIT Regulations. 3. Industry to which the entity being acquired Power Transmission (Inter-State Transmission (ISTS) project) belongs 4. Objects and effects of acquisition (including The acquisition of the aforesaid power transmission asset is in but not limited to, disclosure of reasons for line with IndiGrid’s investment strategy as provided in the Trust acquisition of target entity, if its business is Deed with a focus to ensure stable distribution to unitholders by outside the main line of business of the listed owning assets with long term contracts. entity) 5. Brief details of any governmental or regulatory The governmental, regulatory or any other approvals, as may be approvals required for the acquisition required, to be obtained for the aforesaid acquisition. 6. Indicative time period for completion of the Post becoming completed and revenue generating project, in acquisition one or more tranches, in accordance with TSA and SEBI InvIT Regulations and subject to receipt of requisite approvals for the acquisition (“Acquisition Date”). 7. Nature of consideration – whether cash Cash or any such other manner as mutually agreed between the consideration or share swap and details of parties and subject to InvIT Regulations the same 8. Cost of acquisition or the price at which the The Enterprise Value not exceeding INR 13,360 million, subject shares are acquired to all other closing adjustments as specified in the Securities Purchase Agreement(s) entered into. 9. Percentage of shareholding / control acquired IndiGrid to acquire, in one or more tranches, entire shareholding and / or number of shares acquired and management control in LPTL subject to approval of unitholders, the terms of Securities Purchase Agreement(s), TSA, SEBI InvIT Regulations and requisite regulatory approvals. 10. Brief background about the entity acquired in LPTL was incorporated on October 28, 2022, by REC Power terms of products/ line of business acquired, Development and Consultancy Limited (“REC”) to execute date of incorporation, history of last 3 years project i.e. “Transmission system for evacuation of power from turnover, country in which the acquired entity Sunni Dam HEP and Luhri Stage-I HEP” has presence and any other significant information (in brief); The expected Commercial Operation Date (“COD”) is Q3’FY 2030. IndiGrid Investment Managers Limited Registered & Corporate Office: Unit No. 101, First Floor, Windsor, Village KoleKalyan, off CST Road, Vidyanagari Marg, Kalina, Santacruz (East), Mumbai – 400 098, Maharashtra, India CIN: U28113MH2010PLC308857 Ph: +91 72084 93885 | Email: complianceofficer@indigrid.com | www.indigrid.co.in