Please refer the attachment.

IDFCFIRSTBANK/SD/154/2026-27 October 21, 2026 National Stock Exchange of India Limited BSE Limited Mumbai 400 051 Mumbai 400 001 NSE Symbol: IDFCFIRSTB BSE Scrip Code: 539437 Sub.: Grant of Stock Options under ‘IDFC FIRST Bank Limited - Employee Stock Option Scheme’ Ref.: Disclosure under Regulation 30 of the SEBI (LODR) Regulations, 2015, as amended Dear Sir/ Madam, We wish to inform you that the Nomination & Remuneration Committee (“NRC”), at its meeting held today, approved the grant of 98,00,000 stock options to new joiners and eligible employees, pursuant to their respective employment offers, and to reward, incentivize, and retain talent basis their performance, at a price determined by the NRC, in compliance with the SEBI (SBEB) Regulations, 2021. Executive Board members are not part of this grant. The said Options will vest equally over a period of 4 years (viz. 25% each year) with an exercise period of 3 months from date of respective vesting. The meeting commenced at 11:30 a.m. and concluded at 02:10 p.m. Please take the above on record. 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 Fax: +91 22 2654 0354 Registered Office: KRM Towers, 7th Floor, No.1, Harrington Road, Chetpet, Chennai - 600 031. Tel: +91 44 4564 4000 Fax: +91 44 4564 4022 CIN: L65110TN2014PLC097792 bank.info@idfcfirstbank.com www.idfcfirstbank.com