Compliance Certificate under Reg. 74(5) of SEBI (DP) Regulation

Ref. No.: SISLP/2026-2027/037 Date: 12th Oct, 2026 The Manager, Department of Corporate Services, BSE Limited, Phirozee Jeejeebhoy Towers, Dalal Street, Fort, Mumbai-400001 Scrip Code:543598 ISIN: INE0LU301014 Sub: Certificate Under Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended on 30th September, 2026. Dear Sir/Madam, Pursuant to Regulation 74 (5) of the SEBI (Depositories and Participants) Regulations, 2018, please find enclosed certificate received from our Register and Transfer Agent namely Bigshare Services Private Limited for the quarter ended 30th September, 2026. This is for your information and record. Thanking You, Yours Sincerely, For Shantidoot Infra Services Limited Anamika Singh Company Secretary & Compliance Officer Membership No.: 75226 Encl: RTA Certificate Ref No. BSS/74(5) Date: 10/10/2026 SHANTIDOOT INFRA SERVICES LTD F/NO- 201, R ENCLAVE, NEW P.P COLONY, PATLIPUTRA PATNA 800013 Dear Sir/Madam, Sub: Certificate under Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended 30th September 2026. Ref: NSDL/CIR/II/5/2019 dated 25th January 2019 DSL/OPS/RTA/POLICY/2019/14 dated 25th January 2019. SEBI vide its letter ref no. MRD/DOP2/DSA2/OW/2019/2498/1 dated 24/01/2019 Dear Sir/Madam, With reference to the captioned regulation, we hereby confirm that the said Regulation is not applicable to the Company, as the entire holding of the Company’s shares are in demat form and we have not received any request from any members of the Company for rematerialisation or dematerialisation; during the quarter ended on 30th September 2026. We request you to kindly take note of the above in your records. Thanking you, Yours faithfully, For Bigshare Services Pvt. Ltd., Sandeep More Authorised Signatory