Trading Window

Date: September 19, 2026 Ref. No.: KDL/SE/047/2026-27 To, To, BSE Limited National Stock Exchange of India Limited Corporate Relationship Department Exchange Plaza, Plot No. C-1, Block G, 25th Floor, Phiroze Jeejeebhoy Towers Bandra Kurla Complex, Bandra (East) Dalal Street, Mumbai- 400001 Mumbai – 400051 Scrip Code: 543328 NSE Symbol: KRSNAA Dear Sir/Madam, Subject: Intimation of closure of Trading Window under SEBI (Prohibition of Insider Trading) Regulations, 2015. This is to inform you that pursuant to SEBI (Prohibition of Insider Trading) Regulations, 2015 (as amended) and Company's ‘Code of Conduct to regulate, monitor and report trading by Designated Persons’, the Trading Window for dealing in the securities of the Company shall remain closed from September 22, 2026 till the expiry of 48 hours after the declaration of Unaudited Financial Results of the Company for the quarter and half year ending on September 30, 2026 (both days inclusive). All the Directors, Key Managerial Personnel, Designated Employees/persons, Promoters of the Company and their immediate relatives are advised not to deal in the securities of the Company either directly or indirectly during the aforesaid period. The date of the Board Meeting of the Company for consideration and approval of the aforesaid results will be intimated separately in due course. You are requested to take the above information on your record. For Krsnaa Diagnostics Limited Sujoy Sudipta Bose Company Secretary and Compliance Officer