Release of New Version of NFCAST and EMDI Market Data API for Closing Auction Session Changes
BSE notice 20260515-25 · 15 May 2026
Official record
Open source pageSummary
Check the official recordBSE notice 20260515-25 · 15 May 2026
Official record
Open source pageSummary
Check the official recordBSE releases updated versions of the NFCAST and EMDI market data APIs to support Closing Auction Session changes. The new versions are NFCAST version 6.1 and EMDI version 1.4.5. Trading members and third-party front-end trading application vendors must update their applications. Members must test these changes in the test environment to ensure a smooth rollout. The Exchange will provide a separate notification regarding the availability of these changes in the simulation environment. Members can access the documentation on the official BSE website.
What you must do
Who is affected
[Image omitted. See the official document.]
| Notice No. | 20260515-25 |
|---|---|
| Notice Date | 15 May 2026 |
| Category | Trading |
| Segment | Equity |
| Department | Trading Development |
| Subject | Release of new version of NFCAST and EMDI market data API for Closing Auction Session Changes |
| Attachments | No Attachment |
This is in continuation to Exchange circular no. 20260330-39 dated March 30, 2026 regarding Release of new version of ETI API & NFCAST market data API for facilitating Closing Auction Session related changes.
As part of roll-out of market data changes, it is proposed to implement additional enhancements in NFCAST market data. For this, updated version of NFCAST market data API, ver. 6.1 has been made available, incorporating suitable changes.
Further, new version of EMDI (Enhanced Market Data Interface) ver. 1.4.5 has been made available, incorporating suitable changes.
These documents shall be available on the Exchange website - http://www.bseindia.com/nta.aspx .
Trading members and third-party front-end trading application vendors are advised to initiate necessary changes in their respective applications and test the same in the test environment to ensure a smooth rollout. The Exchange shall notify members separately regarding the availability of CAS related changes in the test (simulation) environment.
For any queries or clarifications, members may kindly get in touch as per the following contact details –
| Queries | Email ID | Telephone No. |
|---|---|---|
| Technical queries | bse.tech@bseindia.com | 022-2272 8053 |
For & On Behalf of BSE Ltd,
Nawaid Pathan
Vice President
I.T. Development
Amith Iyer
Dy. Vice President
Trading Development
May 15, 2026