How can I change the email address linked to my demat account?

Similar to a mobile number change, you update this through the profile or account settings section of the broker’s app, which typically requires verification through OTP or a confirmation link sent to both the old and new email addresses where possible. If the old email is no longer accessible, the broker usually needs additional identity verification, since email changes affect where trade confirmations, contract notes, and account statements get sent, making it a security-relevant change rather than a purely cosmetic one. You make sure the new email address is one you check regularly and control fully, since contract notes, ledger statements, and important account alerts (including any suspicious login or trade notifications) all route through the registered email, and missing those defeats one of the key ways you’d catch unauthorised account activity.