Certificate under SEBI (Depositories and Participants) Regulations, 2018

DIAMOND POWER INFRASTRUCTURE LIMITED October 09, 2026 To To Corporate Relations Department Listing Department BSE Limited National Stock Exchange of India Limited 2nd Floor, P.J. Towers Exchange Plaza, Plot No. C/1, G- Block, Dalal Street, Bandra Kurla Complex, Bandra (E), Mumbai – 400 001 Mumbai – 400 051 Scrip Code: 522163 NSE: DIACABS Sub: Certificate pursuant to Regulation 74(5) of SEBI (Depositories & Participants) Regulations, 2018 for the quarter ended September 30, 2026 Re: ISIN- INE989C01038 Dear Sir/Madam, Pursuant to Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018, we hereby submit the confirmation certificate received from M/s. KFin Technologies Limited (KFIN), the Registrar and Transfer Agent (RTA) of the Company, confirming compliance with the requirements prescribed under the aforesaid Regulation for the quarter ended September 30, 2026. We request you to kindly take the same on record. Thanking you, For Diamond Power Infrastructure Limited Jayesh Patel Company Secretary ICSI M. No.: A14898 Encl: as above Regd. Office & Factory: Vadadala, Phase – II Savli, Vadodara, Gujarat, India-391520 CIN: L31300GJ1992PLC018198 Email: cs@dicabs.com, Website: www.dicabs.com Tel No.- 02667-251354/251516 Fax No.-02267-251202 KFIN/DPL/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 DIAMOND POWER INFRASTRUCTURE 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 C SHOBHA ANAND VICE PRESIDENT CC TO: DIAMOND POWER INFRASTRUCTURE LIMITED ESSEN HOUSE 5/12 , BIDC GORWA VADODARA 390016 KFIN/DPL/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 DIAMOND POWER INFRASTRUCTURE 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 C SHOBHA ANAND VICE PRESIDENT CC TO: DIAMOND POWER INFRASTRUCTURE LIMITED ESSEN HOUSE 5/12 , BIDC GORWA VADODARA 390016