Description
NSE announces revised mock trading timings for November 22, 2025, introducing new NEAT+ version 7.8.6 and discontinuing version 7.8.5.
Summary
NSE has issued a partial modification to circular NSE/CMTR/71386 dated November 20, 2025, revising mock trading timings for Saturday, November 22, 2025. The Exchange will discontinue NEAT+ version 7.8.5 and introduce new version 7.8.6 effective from the November 22, 2025 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 scheduled for Saturday, November 22, 2025 with revised timings
- NEAT+ version 7.8.6 will be introduced, replacing version 7.8.5
- NEAT+ 7.8.6 available for download from November 21, 2025, 19:00 hrs via NSE Extranet path: /common/NEATPlus786
- NEAT+ version 7.8.5 will be discontinued from November 22, 2025 (mock)
- NEAT+ version 7.8.4 will be discontinued on December 06, 2025 (mock)
- Two trading sessions planned: Session-1 (morning) and Session-2 (afternoon)
- Trading Session-2 will be a clean session with no orders/trades carried over from Session-1
- Live re-login window available from 18:30 to 19:00 hrs
Regulatory Changes
No regulatory framework changes. This is a technical system upgrade for the trading platform.
Compliance Requirements
- Members must download and install NEAT+ version 7.8.6 before November 22, 2025
- Members must actively participate in all mock trading sessions
- Members should discontinue use of NEAT+ version 7.8.5 from November 22, 2025
- Members must refer to Annexures for additional mock trading instructions and pre-requisites
Important Dates
- November 21, 2025, 19:00 hrs: NEAT+ version 7.8.6 available for download
- November 22, 2025: Mock trading session with new NEAT+ 7.8.6; discontinuation of NEAT+ 7.8.5
- December 06, 2025: Scheduled discontinuation of NEAT+ version 7.8.4 (mock)
Mock Trading Session-1 Timings (November 22, 2025)
- Morning Block Deal Window: 08:45 - 09:00
- Pre-Open Session: 09:00 - 09:53 (random closure in last minute)
- Special Preopen (IPO/Relisted): 09:00 - 09:45 (random closure in last 10 minutes)
- Normal Market Open: 10:00
- T+0 Market: 10:00 - 10:40
- Call Auction Illiquid: 10:15 - 10:30 (random closure in last minute)
- Auction Market: 10:15 - 10:50
- Normal Market Close: 11:00
- Closing Session: 11:10 - 11:20
- Trade Modification End: 11:25
Mock Trading Session-2 Timings (November 22, 2025)
- Block Deal Window: 13:45 - 14:00
- Pre-Open: 14:00 - 14:08 (random closure in last minute)
- Normal Market Open: 14:15
- Call Auction Illiquid: 14:30 - 15:30 (2 sessions of 1 hour each, random closure in last minute)
- T+0 Market: 14:15 - 15:40
- Afternoon Block Deal Window-2: 15:05 - 15:20
- Auction Market: 14:30 - 15:15
- Normal Market Close: 16:30
- Closing Session: 16:40 - 16:50
- Trade Modification End: 17:00
- Live Re-login: 18:30 - 19:00
Impact Assessment
Operational Impact: Medium - All trading members must participate in mandatory mock trading session and upgrade to new NEAT+ version. The system upgrade requires technical preparation but follows standard NSE upgrade procedures.
Market Impact: Low - Mock trading occurs on a non-trading day (Saturday) with no impact on live markets.
Member Readiness: Members have adequate notice (download available from November 21, 19:00 hrs) to prepare for the November 22 mock session. The two-session format allows comprehensive testing of the new platform version.
System Migration: Phased discontinuation approach provides buffer period - version 7.8.4 remains available until December 6, 2025, allowing smooth transition for members who may face issues with the new version.
Impact Justification
Mandatory mock trading session for system upgrade affects all trading members but is a scheduled maintenance activity with clear timings provided