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

INDIGRID INVESTMENT MANAGERS LIMITED Date: August 12, 2026 BSE 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. Scrip Code: 540565 SYMBOL – INDIGRID Subject: Valuation Report for assets of IndiGrid Infrastructure Trust for quarter ended on June 30, 2026 Dear Sir/ Madam, Pursuant to Regulation 21 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”), we hereby enclose the Valuation Report for assets of IndiGrid Infrastructure Trust for the quarter ended on June 30, 2026. You are requested to take the same on record. Thanking you, 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 Copy to- Axis Trustee Services Limited The Ruby, 2nd Floor, SW,29, Senapati Bapat Marg, Dadar West, Mumbai- 400 028, Maharashtra, India. Encl: As above 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 Prepared for: IndiGrid Infrastructure Trust (“the Trust”) IndiGrid Investment Managers Limited (“the Investment Manager”) Valuation as per SEBI (Infrastructure Investment Trusts) Regulations, 2014 as amended Fair Enterprise Valuation Valuation Date: 30th June 2026 Report Date: 12th August 2026 Mr. S Sundararaman, Registered Valuer, IBBI Registration No - IBBI/RV/06/2018/10238 Email: chennaissr@gmail.com Phone No: +91 9790928047 GST No: 33AHUPS0102L1Z8 S. SUNDARARAMAN Registered Valuer Registration No - IBBI/RV/06/2018/10238 12th August 2026 IndiGrid Infrastructure Trust (Axis Trustee Services Limited acting on behalf of the Trust) Unit No. 101, 1st Floor, Windsor Village, Kole Kalyan Off CST Road, Vidyanagari Marg, Santacruz (E), Mumbai - 400 098 IndiGrid Investment Managers Limited (Investment Manager of IndiGrid Infrastructure Trust) Unit No. 101, 1st Floor, Windsor, Village Kole Kalyan, Off CST Road, Vidyanagari Marg, Santacruz (E), Mumbai - 400 098 Sub: Fair Enterprise Valuation of InvIT assets as per SEBI (Infrastructure Investment Trusts) Regulations, 2014, as amended (“the SEBI InvIT Regulations”) as at 30th June 2026 Dear Sir(s)/ Madam(s), I, Mr. S. Sundararaman (“Registered Valuer” or “RV” or “I” or “My” or “Me”) bearing IBBI registration number IBBI/RV/06/2018/10238, have been appointed vide letter dated 16th June 2026 (EL Ref No:RV/SSR/26-27/JN/06) , as an independent valuer, as defined as per Regulation 2(zzf) of the SEBI InvIT Regulations, by IndiGrid Investment Managers Limited (“IIML” or “the Investment Manager”) acting as the Investment Manager for IndiGrid Infrastructure Trust (“the Trust” or “InvIT”) and Axis Trustee Services Limited (“the Trustee”) acting on behalf of the Trust for the purpose of the financial valuation of the projects (defined below and hereinafter together referred as “the SPVs”) of the Trust as per the requirements of the Securities and Exchange Board of India (Infrastructure Investment Trusts) Regulations, 2014, as amended (“SEBI InvIT Regulations”). The Trust operates and maintains the following special purpose vehicles which are to be valued as per Regulation 21 read with Chapter V of the SEBI InvIT Regulations: I. Transmission & BESS Assets: SPV No of Project Sr. No. Name of the SPVs Projects Abbreviation Projects Models Transmission Assets 1 Bhopal Dhule Transmission Company Ltd BDTCL 1 BDTCL BOOM 2 Jabalpur Transmission Company Ltd JTCL 2 JTCL BOOM 3 Maheshwaram Transmission Pvt Ltd MTL 3 MTL BOOM 4 RAPP Transmission Company Ltd RTCL 4 RTCL BOOM 5 Purulia & Kharagpur Transmission Company Ltd PKTCL 5 PKTCL BOOM 6A PTCL-I BOOM 6 Patran Transmission Company Pvt Ltd PTCL 6B PTCL-II* BOOM 7A NRSS-I BOOM 7 NRSS XXIX Transmission Ltd NRSS 7B NRSS-II* BOOM 8 Odisha Generation Phase - II Transmission Ltd OGPTL 8 OGPTL BOOM 9 East-North Interconnection Company Ltd ENICL 9 ENICL BOOM 10A GPTL - I BOOM 10 Gurgaon Palwal Transmission Pvt Ltd GPTL 10B GPTL - II* BOOM 11 NER II Transmission Ltd NERTL 11 NERTL BOOM 12 Raichur Sholapur Transmission Company Pvt Ltd RSTCPL 12 RSTCPL BOOM 13 Khargone Transmission Ltd KhTL 13 KhTL BOOM 14 Jhajjar KT Transco Pvt Ltd JKTPL 14 JKTPL DBFOT 15 Parbati Koldam Transmission Company Ltd PrKTCL 15 PrKTCL BOO 16A KTL-I BOOM 16 Kallam Transmission Ltd KTL 16B KTL-II* BOOM 16C KTL-III* BOOM 17 Kallam Transco Ltd KTCO 17 KTCO BOOT 18 Dhule Power Transmission Ltd DPTL 18 DPTL BOOT 19 Ishanagar Power Transmission Ltd IPTL 19 IPTL BOOT 20 Ratle Kiru Power Transmission Ltd RKPTL 20 RKPTL BOOT 21 Terralight Solar Energy SitamauSS Pvt Ltd TL SitamauSS 21 BOOM SitamauSS KNTL - I BOOM 22 Koppal Narendra Transmission Ltd KNTL 22 KNTL - II* BOOM 23 Gadag Transmission Limited GTL - I BOOM GTL 23 GTL - II* BOOM BESS Assets 24 Kilokari BESS Pvt Ltd KBPL 24 KBPL BOOT 25 Gujarat BESS Pvt Ltd GBPL 25 GBPL BOO 26 Rajasthan BESS Pvt Ltd RBPL 26 RBPL BOO *These are part of the respective same project and are shown separately as they are extensions. IndiGrid Infrastructure Trust IndiGrid Investment Managers Limited Fair Enterprise Valuation of the Projects 30th June 2026 Page 2 of 233 S. SUNDARARAMAN Registered Valuer Registration No - IBBI/RV/06/2018/10238 II. Solar Assets SPV No of Project Sr. No. Name of the SPVs Projects Abbreviation Projects Models A. Godawari Green Energy Pvt Ltd 27 A. ISPL 1 B. Godawari Green Energy Pvt Ltd 28 B. ISPL 2 27 BOOM C. Godawari Green Energy Pvt Ltd 29 C. GGEL GGEL D. Godawari Green Energy Pvt Ltd 30 D. Globus 28 TN Solar Power Energy Pvt Ltd TNSEPL 31 TNSEPL BOOM Universal Mine Developers & Service Providers Pvt 29 UMD 32 UMD BOOM TL Kanji 30 Terralight Kanji Solar Pvt Ltd 33 TL Kanji BOOM TL Raj 31 Terralight Rajapalayam Solar Pvt Ltd 34 TL Raj BOOM 32 Solar Edge Power and Energy Pvt Ltd Solar Edge 35 Solar Edge BOOM TL Charanka BOOM 33 Terralight Solar Energy Charanka Pvt Ltd TL Charanka 36 BOOM 34 PLG Photovoltaic Pvt Ltd 37 PLG BOOM USUPL 35 Universal Saur Urja Pvt Ltd 38 USUPL BOOM TL PatlasI 36 Terralight Solar Energy Patlasi Pvt Ltd 39 TL PatlasI BOOM TL Nangla 37 Terralight Solar Energy Nangla Pvt Ltd 40 TL Nangla BOOM TL Gadna 41 38 Terralight Solar Energy Gadna Pvt Ltd TL Gadna BOOM JUPL 39 Jaisalmer Urja VI Pvt Ltd JUPL BOOM 40 ReNew Surya Aayan Pvt Ltd RSAPL 43 RSAPL BOOM (Herein after all the above 40 SPVs are together referred to as the “the SPVs” and all the 43 projects mentioned above are together referred to as “the Projects”) *The Scheme of Amalgamation of Globus, ISPL-1, and ISPL-2 with GGEL, pursuant to the provisions of Sections 230 to 232 of the Companies Act, 2013 and Section 2(1B) of the Income Tax Act 2025, is given effect with effect from 23rd March 2026 as the necessary approvals from the ROC are obtained. These SPVs were acquired by the Trust and are to be valued as per Regulation 21(5) contained in the Chapter V of the SEBI InvIT Regulations. As per Regulation 21(5) of Chapter V of the SEBI InvIT Regulations: "A half yearly valuation of the assets of the InvIT shall be conducted by the valuer for the half-year ending September 30th for a publicly offered InvIT for incorporating any key changes in the previous six months and such half yearly valuation report shall be submitted by the Investment Manager to the designated stock exchanges(s) along with the quarterly financial results for quarter ending 30th September. If the consolidated borrowings and deferred payments of an InvIT, in terms of regulation 20 of these regulations, ex [Showing first 8,000 characters — download PDF for full document]