Please find enclosed intimation regarding closure of Trading Window.

October 1, 2026 Listing Department Listing Department National Stock Exchange of India Ltd. BSE Limited Exchange Plaza, 5th floor P J Towers Plot No. C/1, G Block Dalal Street Bandra-Kurla Complex Mumbai 400 001 Bandra (East) Mumbai 400 051 Dear Sir/Ma’am, Sub.: Intimation regarding meeting of Board of Directors Kindly be informed that a meeting of the Board of Directors of the Company will be held on Friday, October 23, 2026, to consider and approve the unaudited consolidated and standalone financial results for the quarter and nine months period ended September 30, 2026, and to consider the payment of third interim dividend for the financial year ending December 31, 2026. Kindly be informed that the "No Trading Window" for the employees of Crisil Limited and its subsidiary companies, as per the Insider Trading Code adopted by it, has commenced 15 days before the close of previous quarter i.e. from September 15, 2026, and will be operative until October 27, 2026 (both days inclusive). Kindly take the above on record. Yours faithfully, For Crisil Limited Minal Bhosale Company Secretary and Head Legal ACS 12999