Kindly find attach Certificate under Reg 74(5) of SEBI (DP) Regulation.

Date: 09th October 2026 The General Manager-Listing Corporate R0065lationship Department P J Towers, Dalal Street, Mumbai-400001 Scrip Code: 540590 SYMBOL: RIDDHICORP ISIN: INE325X01015 Sub: Certificate under Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018, for the quarter ended 30th September, 2026. Dear Sir/Madam, We herewith enclose a Certificate dated 01st October, 2026 under Regulation 74 (5) of SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended 30th September, 2026 received from M/s. Purva Sharegistry India Private Limited, Registrar and Share Transfer Agent (RTA) of our company. Thanking you Yours Faithfully, For, Riddhi Corporate Services Limited MUSTAFA .M. SIBATRA Company Secretary & Compliance Officer Copy To: Copy To: The Vice President The Vice President National Securities Depository Limited Central Depository Services (India) Limited Trade World, 'A‘ Wing, 4th Floor, Marathon Futures, A-Wing Kamala Mills Compound, 25th Floor, NM Joshi Marg Senapati Bapat Marg, Lower Parel, Lower Parel Mumbai - 400 013 Mumbai- 400 013 01/10/2026 RIDDHI CORPORATE SERVICES LIMITED - INE325X01015 Dear Sir/Madam. Sub : Confirmation Certificate under Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 As per Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018, we hereby confirm that security received from the depository participants for dematerialisation during the quarter ended September, 2026, were confirmed (accepted / rejected) to the depositories by us and that securities comprised in the said certificates have been listed on the stock exchanges where the earlier issued securities are listed. We hereby also confirm that the security certificates received for dematerialisation have been confirmed/rejected and the security certificates received were mutilated and cancelled after due verification by the depository participant and the name of the depositories have been substituted in the register of members as the registered owner within the prescribed timelines. We request you to kindly take note of the above in your records. Thanking you, Yours faithfully, For Purva Sharegistry (India) Pvt. Ltd. Ms. Deepali Gaonkar Compliance Officer. RIDDHI CORPORATE SERVICES LIMITED - INE325X01015 - Details of Share certificates dematerialised from 01/07/2026 to 30/09/2026 FOLIO NAME OF CERTIFICA DIST. DIST. SHARE DEMATERIAL SHAREHOLDER TE NO. NO.(FROM) NO.(TO) S ISED ON NIL NIL NIL NIL NIL NIL NIL