Hello Sai Kumar Bevara,
Here mendix write some documentation about the different steps you need to think about:
https://docs.mendix.com/refguide/upgrading-from-9-to-10/
I experienced not that many problems when moving several apps from 9 to 10 and it succeeded every time.
Please read it before you do your migration and identify which changes could affect your app beforehand, scheduled events, workflows, also have a look on the different appstore modules updates.
Hope this helps,
Good luck!