Certificate under SEBI (Depositories and Participants) Regulations, 2018

Date: October 06, 2026 Ref. No.: KDL/SE/053/2026-27 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: Submission of Confirmation Certificate in the matter of Regulation 74(5) of SEBI (Depositories and Participants) Regulations 2018 for the quarter ended September 30, 2026. With regards to the captioned subject, please find enclosed herewith the certificate for the quarter ended September 30, 2026, pursuant to Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018 issued by KFin Technologies Limited (SEBI Registration Number INR000000221), Registrar and Share Transfer Agent of the Company. You are requested to take the above information on your record. For Krsnaa Diagnostics Limited Sujoy Sudipta Bose Company Secretary and Compliance Officer Encl.: As above KFIN/KDIA/CDSL/74(5) E/1 Date: 01‐10‐2026 CENTRAL DEPOSITORY SERVICES (INDIA) LIMITED REGD OFF: MARATHON FUTUREX, A WING 25TH FLOOR NM JOSHI MARG LOWER PAREL (EAST) MUMBAI ‐ 400 023 Dear Sir(s), Sub: Certificate under Regulation 74(5) for the quarter ended September 30,2026 We as Registrar to an Issue and Share Transfer Agent of the KRSNAA DIAGNOSTICS LIMITED, certify that the details of securities dematerialized/rematerialized during the aforesaid period, as required under Regulation 74(5) of SEBI (Depositories and participants) Regulations 2018 have been furnished to all the Stock Exchanges where the shares of the company are listed. Thanking You Yours faithfully, for KFIN TECHNOLOGIES LIMITED ANANDAN K ASSISTANT VICE PRESIDENT CC TO: KRSNAA DIAGNOSTICS LIMITED S. NO. 243/A, HISSA NO. 6 CTS NO. 4519, 4519/1 NEAR CHINCHWAD STATION, CHINCHWAD TALUKA ‐ HAVELI, PUNE 411019 KFIN/KDIA/NSDL/74(5) E/1 Date: 01‐10‐2026 NATIONAL SECURITIES DEPOSITORY LIMITED TRADE WORLD 4TH FLOOR KAMALA MILLS COMPOUND SENAPATI BAPAT MARG LOWER PAREL MUMBAI ‐ 400 013 Dear Sir(s), Sub: Certificate under Regulation 74(5) for the quarter ended September 30,2026 We as Registrar to an Issue and Share Transfer Agent of the KRSNAA DIAGNOSTICS LIMITED, certify that the details of securities dematerialized/rematerialized during the aforesaid period, as required under Regulation 74(5) of SEBI (Depositories and participants) Regulations 2018 have been furnished to all the Stock Exchanges where the shares of the company are listed. Thanking You Yours faithfully, for KFIN TECHNOLOGIES LIMITED ANANDAN K ASSISTANT VICE PRESIDENT CC TO: KRSNAA DIAGNOSTICS LIMITED S. NO. 243/A, HISSA NO. 6 CTS NO. 4519, 4519/1 NEAR CHINCHWAD STATION, CHINCHWAD TALUKA ‐ HAVELI, PUNE 411019