Mock Trading on Saturday, October 17, 2026 · NSE/CMTR/76920
NSE circular NSE/CMTR/76920 · 16 Oct 2026
Official title
Mock trading on Saturday, October 17, 2026 - No new version release
Official record
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The National Stock Exchange of India conducts a mock trading session in the Capital Market segment on October 17, 2026. The session occurs in two parts 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 NNF software must manually clear orders in their systems. Trades during the mock session do not result in fund pay-in or pay-out. Members must participate using all trading software and re-login into the live environment to ensure connectivity for October 19, 2026.
What you must do
- Members must use NEAT+ version 7.9.0 for the mock trading session.
- Members using NNF software must manually clear orders in their systems.
- Members must participate using all trading software and re-login into the live environment.
Document text
[Image omitted. See the official document.]
National Stock Exchange of India Limited
Circular
| **Department: CAPITAL MARKET SEGMENT** | |
| **Download Ref No: NSE/CMTR/76920** | **Date: October 16, 2026** |
| **Circular Ref. No: 146/2026** | |
All Members,
Mock trading on Saturday, October 17, 2026 –No new version release
Exchange shall be conducting a mock trading session in the Capital Market segment on Saturday, October 17, 2026 as per following:
Members are advised to take note of the below important instructions:
| Mock Date: October 17, 2026 | |
|---|---|
| Particulars | Time in Hrs |
| Trading Session-1 from Primary Site | |
| Morning Block Deal Window Session-1 open time | 09:45 |
| Morning Block Deal Window Session-1 close time | 10:00 |
| Pre-Open open time | 10:00 |
| Pre-Open Market order restriction start time | 10:05 |
| Pre-Open* close time | |
| * Random closure in last two minute | 10:10 |
| Special Preopen Session open time (For IPO & Relisted security) | 10:00 |
| Special Preopen Session** close time (For IPO & Relisted security) | |
| ** Random closure in last ten minute | 10:45 |
| Normal Market open time | 10:15 |
| T+0 Market Open time | 10:15 |
| Call Auction Illiquid session open time (2 sessions of 15 mins each)* | |
| * Random closure in last one minute | 10:30 |
| T+0 Market Close time | 11:30 |
| T+0 Market Trade modification end time | 11:40 |
| Normal market open time for stocks in special preopen session | 11:00 |
| Auction Market Open Time | 10:30 |
| Auction Market Close Time | 11:15 |
| Block Deal Window Session – 2 Open time | 11:05 |
| Block Deal Window Session – 2 Close time | 11:20 |
| Normal Market close time | 12:00 |
| Trading Session-2 from DR Site | |
| Pre-Open open time | 12:45 |
| Pre-Open Market order restriction start time | 12:50 |
| Pre-Open* close time | |
| * Random closure in last two minute | 12:55 |
| Normal Market open time | 13:00 |
| Call Auction Illiquid session open time (1 session of 15 mins)* | |
| * Random closure in last one minute | 13:00 |
| Normal Market close time for CAS securities. | 13:45 |
| CAS Open time | 13:50 |
| CAS Market order restriction start time | 13:55 |
| CAS close time * | |
| * Random closure in last two minutes | 14:00 |
| Normal Market close time | 14:00 |
| Closing Session open time | 14:20 |
| Closing Session close time | 14:30 |
| Trade Modification end time | 14:40 |
| Re-login Timings | |
| Live Re-login start time | 15:30 |
| Live Re-login close time | 16:00 |
- NEAT+ version details:
| Version | Download path on NSE Extranet path |
|---|---|
| NEAT+ 7.9.0 | /cmftp/common/NEATPlus790 |
For other important instructions regarding the mock trading, kindly refer to the following Annexures: 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
Khushal Shah Associate Vice President
| 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/73993 dated April 30, 2026 & NSE/MSD/74511 dated June 02, 2026 for interactive connectivity details. |
| Installation Guide: | Available on NSE Extranet at /common/InstallationProcedure. |
| Software Version: | NEAT+ 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: | 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 trading Session. |
| Participation: | Members should participate using all trading software and re-login into live environment to ensure smooth connectivity for Monday, October 19, 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 Capital Market (CM) 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
- 16 Oct 2026
- Document number
- NSE/CMTR/76920
- Issuing division
- CAPITAL MARKET SEGMENT
- Coverage area
- securities