Hi Tathagata Bhattacharya,
Thanks very much for your feedback and sharing. We're glad that the issue is gone now. It's appreciated that you could click "Accept Answer" to the helpful reply, this will help other users to search for useful information more quickly. Here's a short summary for the problem.
Microsoft Entra Hybrid Joined device failed to enroll to Intune. When trying to open Company portal and complete the setup, got an error stating "Your device is already connected to your organization. "
Support team have a group created in On prem AD. They add the device name to this particular AD group. After that the policy kicked in and the device get enrolled in Intune.
Thanks again for your time. Have a nice day!
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