Authum Investment & Infrastructure Limited (AIIL) has announced the closure of its trading window for dealing in the company's equity shares. This closure applies to all directors, designated persons, and their immediate relatives. The trading window will be shut from Thursday, January 01, 2026, and will remain closed until 48 hours after the announcement of the Un-Audited Standalone and Consolidated Financial Results for the quarter ended December 31, 2025. The Board of Directors will approve these results before they are filed with the stock exchanges. Designated and connected persons have been advised against trading in the company's securities during this period. The trading window is expected to reopen 48 hours after the financial results for the quarter ended December 31, 2025, are officially declared. The specific date for the Board Meeting to approve these financial results will be intimated separately.