i have my college roll number in my last name during exam registration

Hi there and welcome to the forums.

MongoDB cannot change the name in your MongoDB University account. Users must change their account info themselves. Please see below for instructions:

Find Your MongoDB Atlas Account

You can manage your Atlas account’s settings, unlink your account from your Google or GitHub account, and configure multi-factor authentication for your Atlas account.

To find your MongoDB Atlas account:

1. Click your account’s name in the Atlas top menu. ​

2. Click Manage your MongoDB Account.

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Next, the Overview page opens.

From the left-side navigation bar, you can click on Profile Info.

• Provide your personal information in Profile Info.
  

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• If you manage your account through your Google Account, visit your Google Account to manage your personal information.
• If you manage your account through your GitHub Account, visit your GitHub Account to manage your personal information.

Next, you can change the information under Profile as needed and click Save Changes when it is complete.

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It can take up to 24hrs for name changes to reflect in MongoDB University.

Thank you.