Certificate under SEBI (Depositories and Participants) Regulations, 2018

CIN: L65920MH1994PLC080618 HDFC Bank Limited, Email: shareholder.grievances@hdfc.bank.in HDFC House, Website: www.hdfc.bank.in H T Parekh Marg, 165-166 Backbay Reclamation, Churchgate, Mumbai- 400 020 Tel. No.:022-66316000 Ref. No. SE/2026-27/125 October 16, 2026 BSE Limited National Stock Exchange of India Limited Dept of Corporate Services The Listing Department Phiroze Jeejeebhoy Towers, Exchange Plaza Dalal Street, Fort, Bandra Kurla Complex, Mumbai 400 001 Mumbai 400 051 Scrip Code: 500180 Scrip Symbol: HDFCBANK Dear Sir, Sub: Certificate under Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended September 30, 2026 We attach herewith the certificate under Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018, for the quarter ended September 30, 2026 received from Datamatics Business Solutions Limited, Registrar and Transfer Agents of the Bank. This is for your information and records. Thanking you. Yours faithfully, For HDFC Bank Limited Ajay Agarwal Company Secretary Group Head – Secretarial & Group Oversight Encl: a/a Regd. Office: HDFC Bank Limited, HDFC Bank House, Senapati Bapat Marg, Lower Parel (West), Mumbai – 400 013