Dear Sir/ Madam, Please find enclosed herewith closure of trading window intimation for Quarter and half year ended September 30, 2026.

September 25, 2026 Department of Corporate Relationship National Stock Exchange of India Limited BSE Ltd. Exchange Plaza, C-1, Block G, Phiroze Jeejeebhoy Towers, Bandra Kurla Complex, Dalal Street, Fort, Mumbai – 400 001. Bandra (E), Mumbai – 400051 Scrip Code: 539177 NSE Symbol – AIIL Dear Sir/Madam, Sub: Intimation of Closure of Trading Window for the Quarter and half yar ended September 30, 2026 under the SEBI (Prohibition of Insider Trading) Regulations, 2015. This is to inform you that pursuant to the SEBI (Prohibition of SEBI Insider Trading) Regulations 2015 as amended by the SEBI (Prohibition of Insider Trading) (Amendment) Regulations, 2018 and Company’s Code of Conduct for Prevention of Insider Trading, the trading window for dealing in the equity shares of the Company for all its Directors, designated persons and their immediate relatives shall remain closed from Thursday, October 01, 2026 till 48 hours after the announcement/declaration of Un-Audited Standalone and Consolidated Financial Results of the Company for the Quarter and half year ended September 30, 2026 (both days inclusive) as approved by the Board of Directors and filed with the Stock Exchanges. Accordingly, all the Designated Persons/ Connected Persons have been advised not to trade in the securities of the Company during the aforesaid period of closure of Trading Window. The Trading window will open 48 hours after the announcement/ declaration of the financial results for the Quarter ended September 30, 2026, is made by the Company to the Stock Exchanges. The date of Board Meeting to approve Un-Audited Standalone and Consolidated Financial Results of the Company for the Quarter and half year ended September 30, 2026 shall be intimated to you separately. You are kindly requested to take the same on record. For Authum Investment & Infrastructure Limited Dipyanti Jaiswar Company Secretary and Compliance Officer Place: Mumbai