Hello @VJ-8370
Thank you for reaching out to us!
Am afraid to say that your scenario is not supported. Because Azure site recovery and Azure migrate doesn't allow source/target to be in different tenants - that being said migration of VMs from one tenant to another is not a supported scenario using ASR/Azure Migrate.
You may explore the workaround provided in the below links:
https://marckean.com/2018/04/29/move-vms-from-to-anywhere-in-azure/
https://raffertyuy.com/raztype/cloning-azure-vms-to-a-different-tenant-and-subscription-a-work-journey/
https://developers.de/2018/03/26/move-resources-between-subscriptions/
A similar ask for reference - https://video2.skills-academy.com/en-us/answers/questions/209667/want-to-migrate-vm-from-one-tenant-to-another-can.html?childToView=209908#answer-209908
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