You can check official docs :

https://docs.liquibase.com/commands/rollback/rollback-by-tag.html#:~:text=The%20rollback%20command%20is%20typically,row%20in%20the%20DATABASECHANGELOG%20table.

It looks pretty straightforward.

Let me know if I can help you with anything specific on vivek.sinless@gmail.com or here. Whatever suits you. Appreciate you reaching out .