You can request a new ICICI debit card by logging in to the [ICICI Bank website] or the [iMobile app] and going to My Accounts > Cards > Debit Cards > Request > Reissue/Replace Card. You can select your account number and old debit card number from the drop-down menus and choose a reason for reissue or replacement. You will receive your new ICICI debit card within 7 working days at your registered address.