Certificate under SEBI (Depositories and Participants) Regulations, 2018

October 2, 2026 To, To, National Stock Exchange of India Limited, BSE Limited, Exchange Plaza, Plot No. C/1, G Block, Bandra- Phiroze Jeejeebhoy Towers, Kurla Complex, Bandra (East),Mumbai– 21st Floor, Dalal Street, 400051 Mumbai–400001 NSE Symbol: RISHABH BSE Scrip Code:543977 Dear Sir/Madam, Sub: Compliance Certificate under Regulation 74(5) of the Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 for the Quarter ended September 30, 2026 Please find enclosed herewith, Compliance Certificate received from KFin Technologies Limited, Registrar and Share Transfer Agent of Rishabh Instruments Limited, for the Quarter ended September 30, 2026, pursuant to Regulation 74(5) of the Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018. Kindly take the same on your records. For Rishabh Instruments Limited Ajinkya Joglekar Company Secretary and Compliance Officer ICSI Membership No.: A57272 KFIN/RISH/NSDL/74(5) E/1 Date: 02‐10‐2026 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 RISHABH INSTRUMENTS 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: RISHABH INSTRUMENTS LIMITED A54, MAROL MIDC ANDHERI EAST, MUMBAI, MAHARASHTRA‐400093 400093 KFIN/RISH/CDSL/74(5) E/1 Date: 02‐10‐2026 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 RISHABH INSTRUMENTS 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: RISHABH INSTRUMENTS LIMITED A54, MAROL MIDC ANDHERI EAST, MUMBAI, MAHARASHTRA‐400093 400093