Teams chat history Migration from one tenant to another tenant

Hi PrashanthKasula There is a past post in this community that may help address your request: Migrate chat history Teams - Microsoft Tech Community

You can also make a feature request at the Teams feedback portal.  There is already one there that may be what you're looking for (if not, feel free to create a new one and others can vote on it): https://feedbackportal.microsoft.com/feedback/idea/0421312d-272e-ec11-b6e6-00224827bbc2