Certificate under SEBI (Depositories and Participants) Regulations, 2018

IDFCFIRSTBANK/SD/82/2026-27 July 07, 2026 National Stock Exchange of India Limited BSE Limited Mumbai 400 051 Mumbai 400 001 NSE Symbol: IDFCFIRSTB BSE Scrip Code: 539437 Sub.: Certificate in terms of Regulation 74(5) of the Securities and Exchange Board of India (“SEBI”) (Depositories and Participants) Regulations, 2018, as amended. Dear Sir/ Madam, We would like to inform that the details of securities dematerialized / rematerialized during the quarter ended June 30, 2026, as required under Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018, as amended, have been furnished by M/s. KFin Technologies Limited, Registrar & Transfer Agent (‘RTA’) of the Bank, to the Stock Exchanges where the shares of the Bank are listed. Letters confirming the same from the RTA dated July 03, 2026, are enclosed for your reference. Please take the above on record and acknowledge receipt of the same. Thanking You, Yours faithfully, For IDFC FIRST Bank Limited Satish Gaikwad General Counsel and Company Secretary IDFC FIRST Bank Limited Corporate Office: IDFC FIRST Bank Tower, (The Square), C-61, G Block, Bandra-Kurla Complex, Bandra (East), Mumbai - 400 051. Tel: +91 22 7132 5500 Registered Office: KRM Tower, 7th Floor, No.1, Harrington Road, Chetpet, Chennai 600 031, Tamil Nadu. Tel: +91 44 4571 6477 CIN: L65110TN2014PLC097792; E-mail: bank.info@idfcfirstbank.com; Website: www.idfcfirst.bank.in KFPL/CR/CDSL/74(5)/ 2026-27/Q1 July 03, 2026 CENTRAL DEPOSITORY SERVICES (INDIA) LTD REGD OFF: PHIROZE JEEJEEBHOY TOWERS 28TH FLOOR DALAL STREET MUMBAI - 400 023 Dear Sir(s), Sub: Certificate under Regulation 74(5) for the quarter ended 30th June,2026. We as Registrars, Share Transfer and Depository Services agents of the IDFC FIRST BANK 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: THE COMPANY SECRETARY IDFC FIRST BANK LIMITED NAMAN CHAMBERS C-32 G-BLOCK BANDRA KURLA COMPLEX BANDRA EAST MUMBAI - 400 051 KFPL/CR/NSDL/74(5)/ 2026-27/Q1 July 03, 2026 NATIONAL SECURITIES DEPOSITORY LIMITED 301, 3rd FLOOR, NAMAN CHAMBER PLOT C-32, G BLOCK , BANDRA KURLA COMPLEX BANDRA (EAST) MUMBAI - 400 051 Dear Sir(s), Sub: Certificate under Regulation 74(5) for the quarter ended 30th June,2026. We as Registrars, Share Transfer and Depository Services agents of the IDFC FIRST BANK 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: THE COMPANY SECRETARY IDFC FIRST BANK LIMITED NAMAN CHAMBERS C-32 G-BLOCK BANDRA KURLA COMPLEX BANDRA EAST MUMBAI - 400 051