Hello @Shiv Ranjan
Thank you for reaching out to the Microsoft Q&A platform. I am happy to answer your question.
Azure Migrate is not the solution for transfer of subscriptions from one type to another. Here are official documents from microsoft on transfers of subscriptions that provides brief details
Other subscription transfers to a CSP partner:
https://learn.microsoft.com/en-us/azure/cost-management-billing/manage/transfer-subscriptions-subscribers-csp#other-subscription-transfers-to-a-csp-partner
Transfer EA or MCA enterprise subscriptions to a CSP partner
https://learn.microsoft.com/en-us/azure/cost-management-billing/manage/transfer-subscriptions-subscribers-csp#transfer-ea-or-mca-enterprise-subscriptions-to-a-csp-partner
Transfer CSP subscription to other offers
I have answered this on a similar thread here
Hope this helps!
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