Special Window for Re-lodgement of Transfer Requests of Physical Shares

(Formerly – Kilpest India Limited) Ref. No.P-66/2026-27/50 November 11, 2026 The Relationship Manager, Department of Corporate Relations BSE Limited, P.J. Towers, Dalal Street Fort, MUMBAI – 400 001 Dear Sir, SUB: Special Window for Re-lodgement of Transfer Requests of Physical Shares. In accordance with Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, we hereby submit copy of the social media post on LinkedIn along with newspaper advertisements published on, November 6, 2026, in Business Standard, Mumbai and Swadesh Jyoti Bhopal, intimating the Members about the opening of a Special Window for Re-lodgement of Transfer Requests of Physical Shares, in accordance with SEBI Circular No. HO/38/13/11(2) 2026- MIRSD-POD/1/3750/2026 dated January 30, 2026. This is for your information, action and record please. Thanking You, For 3B BlackBio Dx Limited (Formerly, Kilpest India Limited) Nikhil Kuber Dubey Whole Time Director DIN: 00538049 Encl: As above Regd. Office & Factory : 7-C | Industrial Area | Govindpura | Bhopal – 462023 | (M.P.) | INDIA CIN : L24211MP1972PLC001131 Ph.: 91-755-2586536, 2586537 Email : info@kilpest.com Visit us at : www.kilpest.com