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The National Stock Exchange of India Limited conducts a mock trading session in the Currency Derivatives segment on November 07, 2026. All members enabled for trading in this segment are eligible to participate using existing credentials. The session includes a normal market phase from 11:00 to 12:30 and a re-login phase from 14:00 to 14:30. Members must use NEAT version 3.5.4 and clear all outstanding orders before the session. Trades during this session do not result in fund pay-in or pay-out. NNF members must migrate to the new encryption mechanisms by December 07, 2026, as specified in the circular.
What you must do
Key dates
Who is affected
Exceptions
If you do not comply
Ask about this circular
| Download Ref No: NSE/CD/77333 | Date: November 06, 2026 |
|---|---|
| Circular Ref. No: 46/2026 |
All Members,
Mock trading on Saturday, November 07, 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: November 07, 2026 | |
|---|---|
| Particulars | Time in Hrs |
| Trading Session from Primary Site | |
| Normal Market open time | 11:00 |
| Normal Market close time | 12:30 |
| Trade Modification end time | 12:40 |
| Re-login Timings | |
| Live Re-login start time | 14:00 |
| Live Re-login close time | 14:30 |
Members using NNF are requested to refer circular (NSE/MSD/76883) regarding discontinuation of the exiting encryption mechanism with old interactive port (i.e. 10885) from December 07, 2026. Accordingly, NNF members are advised to migrate to either ‘new encryption mechanism with MD5 checksum removal’ or ‘new encryption mechanism & immediate acknowledgement of order related messages’ :
| Segment | Gateway Router | Gateway IPs Subnet ranges | |||
|---|---|---|---|---|---|
| IP Address | New Port | Network | Mask | Port | |
| CD | 172.19.18.85 | 10889* | 172.19.18.0 | 255.255.255.128 | 10870 & 10871 |
| 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.
Continuation Sheet
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
| Toll Free No | Email id |
|---|---|
| 1800-266-0050 (Option1) | msm@nse.co.in |
Important instructions regarding mock trading session
| Particulars | Details |
|---|---|
| Connectivity Parameters: | Refer to circular NSE/MSD/74511 dated June 02, 2026 & 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. |
| 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 : |
Continuation Sheet
| Participation: | Members should participate using all trading software and re-login into live environment to ensure smooth connectivity for Monday, November 09, 2026. |
|---|---|
| Live Updates: | Visit www.nseindia.com for any session-related updates. |
| Support: | For queries, call Toll-Free: 1800 266 0050 (Option 1). |
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): |
