Hi @Shiv ,
According to your description, the issue is related to Power Platform.
Power Platform is currently not supported in the Q&A forum. Please start a new discussion via the Power Platform Community so that you can get dedicated support on this issue.
And I find this article, hope it can give you some inspiration:
https://learn.microsoft.com/en-us/power-platform/admin/move-environment-tenant?tabs=image
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