Description

NSE to conduct mock trading session in Commodity Derivatives Segment on November 01, 2025, introducing mandatory NEAT version 1.5.3 and discontinuing versions 1.5.1 and 1.5.2.

Summary

NSE will conduct a mock trading session for the Commodity Derivatives Segment on Saturday, November 01, 2025. The Exchange is discontinuing existing NEAT versions 1.5.1 and 1.5.2 and introducing mandatory new NEAT version 1.5.3 effective from the November 01, 2025 mock session. Members must download and use the latest NEAT executable from November 01, 2025 onwards. The mock session includes trading from both Primary Site and BCP (Business Continuity Plan) site to ensure smooth connectivity for live trading on Monday, November 03, 2025.

Key Points

  • Mock trading session scheduled for Saturday, November 01, 2025 in Commodity Derivatives Segment
  • NEAT version 1.5.3 becomes mandatory from November 01, 2025 mock session
  • NEAT versions 1.5.1 and 1.5.2 will be discontinued from November 01, 2025 mock session
  • New NEAT version 1.5.3 available for download from October 31, 2025 at 18:00 hrs
  • Download path on NSE Extranet: /comtftp/comtcommon/NEATCO153
  • Mock session includes two trading sessions: Primary Site (11:00-14:00) and BCP Site (14:45-15:30)
  • Live re-login period scheduled from 18:30 to 19:00 hrs on November 01, 2025
  • Members must participate using all trading software to ensure smooth connectivity for November 03, 2025
  • NOTIS application will be accessible during mock session-2
  • UCC validation will be skipped during contingency time for order entry

Regulatory Changes

  • Mandatory upgrade to NEAT version 1.5.3 for all commodity derivatives members
  • Discontinuation of NEAT versions 1.5.1 (released May 02, 2025) and 1.5.2 (released October 03, 2025)
  • Version 1.5.1 discontinuation date: November 01, 2025 (mock)
  • Version 1.5.2 discontinuation date: November 01, 2025 (mock)
  • Version 1.5.3 release date: November 01, 2025 (mandatory, no discontinuation date specified)

Compliance Requirements

  • All members must download and install NEAT version 1.5.3 from NSE Extranet before November 01, 2025 mock session
  • Members must participate in the mock trading session using all trading software
  • Members using NNF software must manually clear orders in their systems as all outstanding orders will be cleared before each session
  • Only valid and compliant UCC/PAN uploaded and approved before cutoff will be allowed (as per circulars NSE/ISC/51754 and NSE/ISC/52722)
  • Members must re-login into live environment to ensure smooth connectivity for Monday, November 03, 2025
  • Members may use either Mock Trading or Simulated Environment to meet regulatory requirements (refer SEBI circular SEBI/HO/MRD1/DSAP/CIR/P/2020/234)
  • For UCC/PAN queries, members should contact uci@nse.co.in

Important Dates

  • October 30, 2025: Circular issued
  • October 31, 2025, 18:00 hrs: NEAT version 1.5.3 available for download
  • November 01, 2025: Mock trading session and mandatory NEAT 1.5.3 implementation
    • Trading Session-1 (Primary Site): 11:00-14:00 hrs
      • Normal Market open: 11:00
      • Contingency start: 12:00
      • Contingency end: 13:30
      • Normal Market close: 14:00
    • Trading Session-2 (BCP Site): 14:45-15:30 hrs
      • Position Limit/Collateral value setup cutoff: 15:40
      • Trade modification end time: 15:40
    • Live Re-login: 18:30-19:00 hrs
  • November 01, 2025: Discontinuation of NEAT versions 1.5.1 and 1.5.2
  • November 03, 2025: Live trading resumes with mandatory NEAT 1.5.3

Impact Assessment

Operational Impact: High - All commodity derivatives members must upgrade their trading systems to NEAT 1.5.3 before the mandatory implementation date. Failure to upgrade will result in inability to trade as existing versions 1.5.1 and 1.5.2 will be discontinued.

Member Preparedness: Members have limited time (October 31-November 01) to download, install, test, and migrate to the new NEAT version. The mock session on November 01 is critical for testing connectivity and functionality before live trading resumes on November 03, 2025.

Business Continuity: The mock session includes testing from both Primary Site and BCP/DR (Disaster Recovery) site to ensure system resilience and member preparedness for contingency scenarios. Members must participate in both sessions to validate their disaster recovery capabilities.

Technical Requirements: Members need to update their systems, test connectivity parameters, ensure UCC/PAN compliance, and validate all trading software integrations during the mock session to prevent disruptions in live trading.

No Financial Obligation: Trades executed during mock sessions will not result in any fund pay-in or pay-out, allowing members to test without financial risk.

Impact Justification

Mandatory software upgrade affecting all commodity derivatives members with discontinuation of existing versions; requires immediate action for system preparation and testing before live trading on November 03, 2025.