Hi @Deep Asmani ,
I'm glad that you were able to resolve your issue and thank you for posting your solution here, so that others experiencing the same thing can easily reference this! Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others ", I'll repost your solution in case you'd like to accept the answer.
Question: Move Document Intelligence(Form Recognizer) custom model from one account to other account
Answer: We can move custom model one tenant to other using API if version "api-version=2023-07-31" using this links: Document Models - Get Model - REST API (Azure Azure AI Services) | Microsoft Learn
Disaster recovery guidance - Document Intelligence (formerly Form Recognizer) - Azure AI services | Microsoft Learn
Thank you again for your time and patience throughout this issue.
Please don’t forget to Accept Answer
and Yes
for "was this answer helpful" wherever the information provided helps you, this can be beneficial to other community members.