Submission of Cyber Security and Cyber Resilience Audit report for the period ended March 31, 2026.

NOTICE Notice No. 20260511-7 Notice Date 11 May 2026 Category Compliance Segment General Department DOSS Subject Submission of Cyber Security and Cyber Resilience Audit report for the period ended March 31, 2026. Attachments No Attachment To All Trading Members, This is with reference to Exchange 20260422-33 dated April 22, 2026, regarding Cyber Security and Cyber Resilience Audit of Trading Members. The Cyber Audit Reporting module is live. Members can access the module directly by logging into BEFS portal Members are required to submit the Cyber Security and Cyber Resilience Audit Report for the period ended March 31, 2026, to the Exchange on or before June 30, 2026. The report has to be submitted electronically through the BEFS portal on or before the due date to avoid any penal or disciplinary action. Members of the Exchange who are also registered with NSE shall submit their Cyber Security & Cyber Resilience Audit report to NSE only. Members of the Exchange who are not registered with NSE shall continue to make submissions to the Exchange as per existing process. All trading members are advised to take note of the above and ensure compliance. For any queries or clarifications, please contact the numbers provided in Table 1 below Table 1: Submission Related Contacts Purpose Contact Nos. Email ID Cyber Audit XBRL related issues +91 9316749660 bse.xbrl@bseindia.com Cyber Audit Process related 022-69158540 022-45720640 022-45720440 mscopr(at)bseindia.com For and on behalf of BSE Ltd Richa Ghosh Dhananjay Mudgal Deputy Vice President Assistant Vice President Member Oversight Member Oversight