I wouldn't recommend to migrate data from QBO to Tally. You have to export your data out to XLS/CSV and import them manually.
Contact us in private should you need any advise.
Hello there, badarivaliveti.
We can export your QuickBooks Online data and then import them into Tally. Let me guide you how:
I've added this reference as your guide: Export Data out of QuickBooks Online.
I'm just a post-away if you have other concerns. Keep safe!