How to Update Your Mobile Number in a Demat Account: Simple Online and Offline Methods

Keeping your registered mobile number updated in your Demat account is important to receive OTPs, transaction alerts and account-related notifications. If you change your phone number, you should update it with your Depository Participant (DP) without delay.

This is especially important if you track or invest in securities and mutual fund units, including schemes from fund houses such as HDFC Mutual Fund.

Ways to change your mobile number in a Demat account

You can update your mobile number through any of the following methods.

1. Online through your broker

Most brokers allow online updates.

Quick steps:

  • Log in to your broker’s website or mobile app

  • Go to Profile or Account Settings

  • Choose Update contact details

  • Enter the new mobile number and verify using OTP

  • Submit the request

2. Through depository portals

You can also update your number directly through the depository where your Demat account is maintained.

  • If your account is with National Securities Depository Limited, you can use its online investor services to update contact details.

  • If your account is with Central Depository Services Limited, you can log in using your BO ID and update your mobile number through the investor portal.

3. Offline through your DP

If online options are not available:

  • Visit your broker or DP branch

  • Fill out the mobile number update form

  • Submit a self-attested copy of your PAN and valid ID proof

  • Your request is usually processed within 1–3 working days

Important points to remember

  • The mobile number should match the one registered with your broker and DP

  • OTP verification is mandatory in most cases

  • You will generally receive an SMS once the update is completed

  • Keeping your mobile number updated ensures uninterrupted access to investment-related alerts, including transactions linked to HDFC MF or any other AMC

Conclusion

Updating your mobile number in a Demat account is a quick but essential step to stay connected with your investments. Whether you use your broker’s platform, the depository portals, or the offline method, keeping your contact details current helps ensure smooth communication and secure access to your account.