@Anirban Guha Majumdar,Thanks for posting in Q&A.
Please check whether the sign-in information is correct and try to logout and login with the correct message.
If the error still exists, it may relate the background of Intune, it is suggested that you open an online case to get more help.
https://learn.microsoft.com/en-us/mem/get-support
Thanks for your understanding.
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