Release of BOLT Pro TWS Version 13.20

NOTICE

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Release of BOLT Pro TWS Version 13.20

Trading members of the Exchange are hereby informed that a new version of BOLT Pro TWS ver. 13.20 shall be released & made live with effect from Monday July 13, 2026. This new version shall be COMPULSORY version release in Equity, Equity Derivatives, Currency Derivatives, Commodity Derivatives & EGR segments.

Functionality introduced as a part of BOLT Pro TWS ver. 13.20

• Technical Enhancement –

Handling changes related to Enhancements in Trading System APIs in Equity segment published by Exchange via circular number 20260515-36 dated May 15th, 2026, 20260529-13 dated May 29th, 2026 and 20260624-30 dated June 24th, 2026.

Download BOLT Pro TWS ver. 13.20

All users using Leased Line Connection can upgrade to BOLT Pro TWS ver. 13.20, by selecting ver. 13.20 in the TWS Version tab of Auto-Download Interface on start of BOLT Pro TWS. The new version of BOLT Pro TWS ver. 13.20 shall be available for download on Friday July 10, 2026 from 7:00 pm onwards and same will be available to test on Saturday July 11, 2026, during mock trading session.

The new version can also be downloaded from the Exchange website. Steps to download BOLT Pro TWS version from website are given below –

1. Browse web-link - http://www.bseindia.com/help/ to download the version.
2. Click on the link – “Update.zip”
3. ‘Software Update.zip’ will be downloaded
4. Unzip the file
5. Read the document ‘How to use this files.doc’. As per the instructions given in the document, please copy the respective files where BOLT Pro TWS is installed.

In case of any queries or further clarification, trading members may kindly get in touch with the BSE Helpdesk as follows –

For and on behalf of BSE Ltd.,

Tejash Somaiya Vice President Trading Development

Omkar Wanage Deputy Vice President Trading Development

July 09, 2026