Description
NSE will conduct mock trading session on November 22, 2025 to introduce NEAT+ version 7.8.6 and discontinue version 7.8.5 in the Capital Market Segment.
Summary
NSE will conduct a mock trading session in the Capital Market Segment on Saturday, November 22, 2025. The exchange will discontinue NEAT+ version 7.8.5 and introduce new NEAT+ version 7.8.6 effective from the mock session. Members must download and use the latest NEAT+ executable from November 22, 2025 onwards. After this date, only NEAT+ versions 7.8.4 and 7.8.6 will be available.
Key Points
- Mock trading session scheduled for Saturday, November 22, 2025
- NEAT+ version 7.8.6 will be introduced, version 7.8.5 will be discontinued
- New version available for download from November 21, 2025 at 19:00 hrs
- Download path: NSE Extranet /common/NEATPlus786
- Two trading sessions planned: Session-1 (08:45 to 11:25 hrs) and Session-2 (16:15 to 21:00 hrs)
- Trading Session-2 will be a clean session with no data from Session-1
- Active participation by all members required in all trading sessions
Regulatory Changes
No regulatory changes. This is a technical upgrade for the trading platform.
Compliance Requirements
- Members must download NEAT+ version 7.8.6 from NSE Extranet before November 22, 2025
- Members must discontinue use of NEAT+ version 7.8.5 after November 22, 2025
- Members required to actively participate in all mock trading sessions
- Members must follow connectivity parameters and installation guidelines as per NSE circular references
Important Dates
- November 21, 2025, 19:00 hrs: NEAT+ version 7.8.6 available for download
- November 22, 2025: Mock trading session and go-live date for NEAT+ 7.8.6
- November 22, 2025 (mock): Discontinuation of NEAT+ version 7.8.5
- December 06, 2025 (mock): Planned discontinuation of NEAT+ version 7.8.4
Mock Trading Session Timings
Trading Session-1 (Primary Site)
- Morning Block Deal Window: 08:45 - 09:00
- Pre-Open: 09:00 - 09:45 (random closure in last minute)
- Special Pre-open (IPO & Relisted): 09:00 - 09:45 (random closure in last 10 minutes)
- Normal Market: 10:00 - 11:00
- T+0 Market: 10:00 - 10:40
- Call Auction Illiquid: 10:15 - 10:30 (30 mins, random closure in last minute)
- Auction Market: 10:15 - 10:50
- Closing Session: 11:10 - 11:20
- Trade Modification end: 11:25
Trading Session-2 (Primary Site)
- Pre-Open: 16:15 - 16:23 (random closure in last minute)
- Normal Market: 16:30 - 18:45
- Call Auction Illiquid: 16:30 - 18:55 (2 sessions of 1 hour each, random closure in last minute)
- Closing Session: 19:00 - 19:10
- Trade Modification end: 20:30
- Live Re-login: 20:30 - 21:00
Version Migration Timeline
| Version | Release Date | Discontinuation Date |
|---|---|---|
| 7.8.4 | October 03, 2025 | December 06, 2025 (mock) |
| 7.8.5 | November 01, 2025 | November 22, 2025 (mock) |
| 7.8.6 (Recommended) | November 21, 2025 | - |
Impact Assessment
This mock trading session has medium operational impact on all NSE trading members. Members must ensure timely download and installation of NEAT+ version 7.8.6 to avoid trading disruptions. The mock session provides an opportunity to test the new version in a controlled environment before live deployment. The discontinuation of version 7.8.5 means members cannot continue using this version after November 22, 2025. No financial obligations arise from the mock trading session, and it serves purely for software testing and familiarization purposes.
Impact Justification
Mandatory mock trading session for software version upgrade affects all trading members' operations but is a scheduled maintenance activity with advance notice