Mock Trading Session in Equity Derivatives Segment on October 24, 2026 · NSE/FAOP/77050
NSE circular NSE/FAOP/77050 · 22 Oct 2026
Official title
Mock trading on Saturday, October 24, 2026 - No new version release
Official record
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The National Stock Exchange of India Limited conducts a mock trading session in the Equity Derivatives segment on October 24, 2026. The session includes two trading periods from the primary site and the disaster recovery site. Members must use NEAT+ version 7.9.0 for the session. All outstanding orders clear before each session. Members using Non-NEAT Frontend software must manually clear orders in their systems. The exchange does not process fund pay-in or pay-out for these trades. Members must participate to ensure connectivity for the live environment on October 26, 2026. NNF members must migrate to new encryption mechanisms before December 07, 2026.
What you must do
- Members must participate in the mock trading session using all trading software.
- NNF members must migrate to new encryption mechanisms by December 07, 2026.
Key dates
Document text
National Stock Exchange of India Limited
Circular
| Department: FUTURES & OPTIONS | |
|---|---|
| Download Ref No: NSE/FAOP/77050 | Date: October 22, 2026 |
| Circular Ref. No: 144/2026 | |
All Members,
Mock trading on Saturday, October 24, 2026 – No new version release
Exchange shall be conducting a mock trading session in the Equity Derivatives (F&O) segment on Saturday, October 24, 2026 as per following schedule:
| Mock Date: October 24, 2026 | |
|---|---|
| Particulars | Time in Hrs |
| Trading Session-1 from Primary Site | - |
| Pre-Open Open time | 11:00 |
| Pre-Open Market order restriction start time | 11:05 |
| Pre-Open Close time* | |
| * Random closure in last two minute | 11:10 |
| Normal Market open time | 11:15 |
| Contingency Start Time | 11:30 |
| Contingency Close Time | 12:00 |
| Normal Market close time | 12:30 |
| Trading Session-2 from DR Site | |
| Pre-Open Open time | 13:15 |
| Pre-Open Market order restriction start time | 13:20 |
| Pre-Open Close time* |
* Random closure in last two minute | 13:25 | | Normal Market open time | 13:30 | | Contingency Start Time | 13:45 | | Contingency Close Time | 14:15 | | Update of Stock & Index future price bands for alignment with CAS in Equity Cash Market | 14:15 | | Normal Market close time | 14:40 | | Trade Modification end time | 14:50 |
| Re-login Timings | Time in Hrs |
|---|---|
| Live Re-login start time | 16:00 |
| Live Re-login close time | 16:30 |
Members are required to take note of the below important points:
- NEAT+ version details:
| Version | Download path on NSE Extranet path |
|---|---|
| NEAT+ 7.9.0 | /faoftp/faocommon/NEATPlus790 |
- Members using NNF are requested to refer circular (NSE/MSD/76883) regarding discontinuation of the exiting encryption mechanism with old interactive port (i.e. 10837) 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 | |
| FO | 172.19.13.85 | 10841* | 172.19.13.0 | 255.255.255.128 | 10820 |
| 10843** | |||||
*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.
Annexure 3: Important guidelines in case of switchover of trading system to Disaster Recovery (DR) Site.
For and on behalf of
National Stock Exchange of India Limited
Aarti Surve
Chief Manager
| Toll Free No | Email id |
|---|---|
| 1800-266-0050 (Option 1) | msm@nse.co.in |
Annexure – 1
Important instructions regarding mock trading session
| Particulars | Details |
|---|---|
| Connectivity Parameters: | Refer to circular NSE/MSD/74511 dated June 02, 2026 for interactive connectivity details. |
| Installation Guide: | Available on NSE Extranet at |
| /faoftp/faocommon/Installation_Procedure. | |
| NEAT Version: | NEATPlus 7.9.0 |
| 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 : |
- 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. | | Participation: | Members should participate using all trading software and re-login into live environment to ensure smooth connectivity for Monday, October 26, 2026. | | NOTIS Availability: | The NOTIS application will be accessible during the mock trading Session. | | Extranet / Member portal availability | Connect2NSE and Extranet facility shall not be available from 19:00 hours to 22:00 hours. Extranet API shall not be available from 19:00 to 22:00 hours. | | 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 Futures & Options (FO) 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. |
| 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. |
Annexure – 3
Important guidelines in case of switchover of trading system to Disaster Recovery (DR) Site
- Kindly note below points after switch over to DR site:
- a. Trades of primary site will be available in Previous Trades window.
- b. Trades can be modified/cancelled using Multiple Trade Modification and Cancellation window respectively.
- c. Messages of primary site will be available in TWS Message Area.
- If user renames or deletes the User folder and re-login the NEAT+ terminal, then data of primary site shall not be available in the functional window as mentioned above point.
Source details
- Source
- National Stock Exchange of India
- Type
- circular
- Published by source
- 22 Oct 2026
- Document number
- NSE/FAOP/77050
- Issuing division
- FUTURES & OPTIONS
- Coverage area
- securities