@Md Rasel
Thank you for posting in Microsoft Q&A forum.
Based on my experience, it's impossible to rollback to a previous version.
We may only restore a site from a DB backup.
And what makes you think you need to roll back? What is the specific problem about the reporting services?
If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.