Release of new version of Market Data API in Equity Segment - Update

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NOTICE Notice No. 20260617-33 Notice Date 17 Jun 2026 Category Trading Segment Equity Department Trading Development Subject Release of new version of Market Data API in Equity Segment - Update Attachments No Attachment This is in continuation to Exchange circular number 20260330-39 dated March 30, 2026, circular number 20260515-25 dated May 15, 2026 and 20260610-38 regarding release of the new version of ETI API & NFCAST Market Data API for facilitating Closing Auction Session related changes. Market Data Streams API structure changes published via above mentioned circulars have been made available for testing in test environment from June 11, 2026. It is now proposed to roll out these changes in live environment in phased manner in Equity segment. Kindly refer below table for rolling out changes in the live environment – Market Data Streams Current Version New Version New Version Go live date NFCAST API Version 5.0 Version 6.2 August 03,2026 (Mock Trading on August 01,2026) MDI / EMDI API Version 1.4.4 Version 1.4.5 July 13,2026 (Mock Trading on July 11,2026) EOBI Version 1.4 No change No change Trading members and front-end trading application vendors are requested to complete necessary testing in their respective applications in the test environment to ensure a smooth rollout. For any queries or clarifications, members may kindly get in touch through the following Contact Details - Email ID: bse.tech@bseindia.com Contact No.: 022-2272 8053 For & on behalf of BSE Ltd, Nawaid Pathan Tejash Somaiya Vice President Vice President I.T. Development Trading Development June 17, 2026