Exchange Identifies Root Cause of October 28 Incident; Assures Robust Systems and Future Readiness

Exchange Identifies Root Cause of October 28 Incident; Assures Robust Systems and Future Readiness

Mumbai, 31th October, 2025: Further to our earlier communication regarding the incident on 28th October2025, this is to update that the primary root cause has been identified as predefined parameter limit relating to reference data like Unique Client Code (UCC) configured within the systems. This led to constraints beyond the threshold. We have taken steps to address the constraints to prevent similar issues in the future. Notably, trading systems have not had issues. Exchange systems are well positioned to support market volumes and growth. We remain committed to strengthening our operational robustness and will continue investing in cutting-edge technology to enhance performance, reliability, and scalability, ensuring that we meet the evolving needs of our members, participants and stakeholders .We sincerely thank our members, participants and all stakeholders for their continued support, cooperation, understanding and valuable assistance during the incident, and we deeply appreciate your ongoing trust and partnership.