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

INDIGRID INVESTMENT MANAGERS LIMITED Date: September 09, 2026 BSE Limited National Stock Exchange of India Ltd Department of Corporate Services Listing Department Phiroze Jeejeebhoy Towers Exchange Plaza, C/1, Block G, Dalal Street, Mumbai — 400 001 Bandra-Kurla Complex, Bandra (East), Mumbai — 400 051 BSE Scrip Code – 540565, 978072 and 978073 NSE SYMBOL – INDIGRID Subject: Intimation of Change in paid-up value of Series AI and Series AJ Non-Convertible Debt Securities Ref: Intimation dated August 20, 2026 - Allotment of Non-Convertible Debt Securities (“Series AI and Series AJ”) Dear Sir/ Madam, Pursuant to Regulation 51 of the Securities and Exchange Board of India (“SEBI”) (Listing Obligations and Disclosure Requirements) Regulations, 2015, Regulation 23 of the SEBI (Infrastructure Investment Trusts) Regulations, 2014, as amended from time to time read with circulars and guidelines issued thereunder by the SEBI and such other law as may be applicable, IndiGrid Infrastructure Trust (“IndiGrid”) has, on September 08, 2026 received the following amounts towards the Second Pay-In from the debt security holders as per the record date specified in the Key Information Document dated August 17, 2026: • Series AI Debt Securities: INR 280,00,00,000 (Indian Rupees Two Hundred and Eighty Crores Only); and • Series AJ Debt Securities: INR 600,00,00,000 (Indian Rupees Six Hundred Crores Only) It is further informed that, consequent to the receipt of the Second pay-in amounts, the paid-up value of the Series AI and Series AJ Non-Convertible Debt Securities or Debentures have been revised from INR 20,000 to INR 1,00,000. The new ISIN INE219X07629 (for Series AI) and ISIN INE219X07611 (for Series AJ) reflecting the revised face value is now listed on the BSE Limited and the listing notice is available on the BSE website. You are requested to take the same on record. Thanking you, For and on behalf of the IndiGrid Investment Managers Limited (Representing IndiGrid Infrastructure Trust as its Investment Manager) Urmil Shah Company Secretary & Compliance Officer ACS-23423 CC to- Axis Trustee Services Limited IDBI Trusteeship Services Limited The Ruby, 2nd Floor, SW, 29, Senapati Bapat Marg, Universal Insurance Building, Ground Floor, Sir P.M. Dadar West, Mumbai- 400 028 Maharashtra, India Road, Fort, Mumbai – 400001 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