The National Stock Exchange of India Limited (NSE), on May 22, 2026, announced a mock trading session for the Futures & Options (F&O) Segment to be conducted on Saturday, May 23, 2026, from both the Primary Site and Disaster Recovery (DR) Site. The mock session is intended to help members test trading infrastructure, connectivity and disaster recovery readiness in the derivatives segment.
As per the circular, the first trading session from the Primary Site will run between 9:00 AM and 10:05 AM, while the second session from the DR Site will operate between 10:45 AM and 11:30 AM, followed by trade modification and live re-login windows. NSE clarified that no new software version release is being introduced for the mock session. The Exchange also informed members that NEAT+ version 7.8.7 will be discontinued after the June 6, 2026 mock session, while version 7.8.8 will remain active and compatible with the new broadcast parameters notified separately.
Members have been advised to use NEAT Adapter version 1.0.27 for both Windows and Linux environments with the applicable GR Port 10833 for the F&O segment. The Exchange further directed members to follow the annexed operational guidelines regarding connectivity, order handling, software testing and DR participation to ensure smooth functioning of live trading operations after completion of the mock exercise.
[Circular Ref. No. 66/2026]
