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

INDIGRID INVESTMENT MANAGERS LIMITED Date: October 06, 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 Subject: Newspaper Advertisements for Notice of Postal Ballot Dear Sir/Madam, Further to our letter dated October 05, 2026, and pursuant to applicable provisions of the Securities & Exchange Board of India (Infrastructure Investment Trusts) Regulations, 2014, as amended, read with the circulars, notifications and guidelines issued thereunder from time to time (including any statutory modification(s), amendments or re-enactments thereof for the time being in force) (the “InvIT Regulations”), we hereby submit copy of newspaper advertisements published on October 06, 2026, in Financial Express (English) and Loksatta (Marathi) inter-alia to intimate Unitholders and interested stakeholders of IndiGrid Infrastructure Trust regarding Notice of Postal Ballot and remote e-voting information. The same is also available on the website of IndiGrid i.e., https://www.indigrid.co.in/ 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 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 INDIGRID INVESTMENT MANAGERS LIMITED Newspaper Advertisement published in Financial Express (English) 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 Newspaper Advertisement published in Loksatta (Marathi) 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