Description

BSE announces modified download timings for unregistered Location ID and ALGO mismatch files during the Muhurat Trading session scheduled for October 21, 2025.

Summary

BSE has issued a notice regarding modified download timings for unregistered Location ID and ALGO mismatch files during the Muhurat Trading session scheduled for October 21, 2025. This is an operational update for trading members to ensure proper technical infrastructure management during the special trading session.

Key Points

  • Modified file download schedule applies to Muhurat Trading session on October 21, 2025
  • UNLC1 and UNLC2 files will be available at 2:30 PM and 3:15 PM
  • _ALGO_MM_1 files will be available at 2:30 PM
  • Trading members can contact BSE Helpdesk for queries at 022-45720400/600 & 022-69158500 or bsehelp@bseindia.com
  • References prior Exchange notices: 20250922-21, 20250922-22, 20250922-23

Regulatory Changes

No regulatory changes. This is an operational adjustment for a special trading session.

Compliance Requirements

Trading members should:

  • Note the modified download timings for unregistered Location ID files
  • Ensure their systems are configured to retrieve ALGO mismatch files at the specified times
  • Contact their respective Relationship Manager or BSE Helpdesk for any clarifications

Important Dates

  • October 21, 2025: Muhurat Trading session with modified file download timings
  • 2:30 PM: UNLC1, UNLC2, and _ALGO_MM_1 files availability
  • 3:15 PM: UNLC2 files second availability

Impact Assessment

This is a low-impact operational notice affecting only the technical infrastructure of trading members. The modified file download schedule is a temporary adjustment for the special Muhurat Trading session and does not affect regular trading operations, market participants, or investment decisions. Trading members need to ensure their systems accommodate the modified timings to maintain compliance with location registration and algorithmic trading monitoring requirements.

Impact Justification

Operational notice regarding modified file download timings for a special trading session. Affects only trading members' technical operations with no direct market impact or compliance obligations.