Mock trading on Saturday, June 20, 2026 - No new version release

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National Stock Exchange of India Limited Circular Department: CURRENCY DERIVATIVES Download Ref No: NSE/CD/74787 Date: June 19, 2026 Circular Ref. No: 22/2026 All Members, Mock trading on Saturday, June 20, 2026 – No new version release Exchange will be conducting a mock trading session in the Currency Derivatives Segment as per the following schedule: Mock Date: June 20, 2026 Particulars Time in Hrs Trading Session from Primary Site - Normal Market open time 13:45 Normal Market close time 15:00 Trade Modification end time 15:10 Re-login Timings Live Re-login start time 18:30 Live Re-login close time 19:00 Members are requested to refer to circular no. NSE/MSD/74511 dated June 02, 2026 regarding new CA certificate and NSE/MSD/74559 dated June 05, 2026 for new version of Neat Adapter EXE application. Accordingly, members are requested to use the combination of new NEAT adapter version and new ports applicable for currency derivatives segment as below: Login through Dates Applicable GR PORT New NEAT Adapter application Version 1.0.29 for Windows Neat Adapter Version 1.0.29 for Linux Neat Adapter Mandatory from July 06, 2026 (mock) 10889 Members using Direct connection through NNF users, are requested to download and use the new CA certificate is available in Extranet path ( /cdsftp/cdscommon/Encryption_CA_Certificate/2026_Certificate ). Accordingly, members shall ensure readiness of their migration plan by July 06, 2026. The applicable new interactive parameters to be used with ‘New CA certificate’: National Stock Exchange of India Limited Page 2 of 4 Segment Gateway Router Gateway IPs Subnet ranges IP Address New Port Network Mask Port Currency Derivatives (CD) 172.19.18.85 10885 172.19.18.0 255.255.255.128 10870 &10871 10889* 10891** *Port – This port will support new encryption messages with MD5 checksum removal. **Port - This port will support new encryption messages with MD5 checksum removal and new immediate Ack request for order related messages. For other important instructions regarding the mock trading, kindly refer to the following Annexure: Annexure 1: Important instructions regarding mock trading session. Annexure 2: Pre-requisites / General guidelines for participating in the Mock environment. For and on behalf of National Stock Exchange of India Limited Aarti Surve Chief Manager Annexure - 1 Important instructions regarding mock trading session Particulars Details Connectivity Parameters: Refer to circular NSE/MSD/73993 dated April 30, 2026 for interactive connectivity details. Installation Guide: Available on NSE Extranet at /cdsftp/cdscommon/Installation_Procedure. NEAT Version: NEAT 3.5.4 Order Purge: All outstanding orders will be cleared before each session. Members using NNF software must manually clear orders in their systems. Software Testing: Refer to circular NSE/MSD/46441 and SEBI circular SEBI/HO/MRD1/DSAP/CIR/P/2020/234. Members may use either Mock Trading or Simulated Environment to meet regulatory requirements. Toll Free No Email id 1800-266-0050 (Option1) msm@nse.co.in National Stock Exchange of India Limited Page 3 of 4 No Financial Obligation: Trades during mock sessions will not result in any fund pay-in or pay-out. UCC/PAN Validity: With reference to Exchange circular NSE/ISC/51754 dated March 24, 2022 and NSE/ISC/52722 dated June 23, 2022 issued by Investor Services Cell and updated from time to time : • Only valid and compliant UCC/PAN uploaded and approved before cutoff will be allowed. • For queries, contact uci@nse.co.in. UCC Validation will be skipped during contingency time for order entry. NOTIS Availability: The NOTIS application will be accessible during the mock session. Participation: Members should participate using all trading software and re-login into live environment to ensure smooth connectivity for Monday, June 22, 2026. Live Updates: Visit www.nseindia.com for any session-related updates. Support: For queries, call Toll-Free: 1800 266 0050 (Option 1). Annexure – 2 Pre-requisites / General guidelines for participating in the Mock environment Pre-requisites / General guidelines Heads Details Eligibility All members enabled for trading in the Currency Derivatives (CD) segment in the live market are automatically eligible for mock trading. Participation is enabled using existing User IDs, IPs, and Box ID mappings from the live environment. Telnet Connectivity Ensure you can successfully telnet the Exchange host from the IP address you intend to use. Box ID Setup Confirm that the Box ID is created on the IP with appropriate messages for the segment you wish to trade in. NNF Application Users If using Non-NEAT Frontend (NNF): a) User ID must be of dealer type. b) It must be converted for NNF. C) It must be mapped with the IP. Branch/User Limits Set appropriate branch and user limits from the Corporate Manager Terminal before placing orders in the mock session. National Stock Exchange of India Limited Page 4 of 4 Exchange Requests for Mock Participation Send email requests for the following actions with User ID and segment details: a) Pro Enablement b) CTCL Conversion (only dealer IDs) c) Password Reset for Corporate Manager User ID d) Unlocking of Corporate Manager User ID e) Change of Trading Rights (e.g., PRO to CLI, PRO+CLI) Password Management Corporate Manager User ID: Exchange will assist with reset/unlock via email. Other User IDs: Members must reset/unlock these themselves using the Corporate Manager Terminal.