General Queries
How to change the registered email id and mobile number in ICICI Direct trading account offline?
You need to submit duly filled ‘Email ID and Mobile number change’ form to nearest Demat enabled ICICI Bank branch (https://www.icicibank.com/find-atm-branch/demat-enabled-branches ).
https://www.icicidirect.com/mailcontent/declaration_change_mobile_n_emailid_form.pdf