Hi Tarun,
I assume you've already thought about the option:
1. export the data
2. delete the objects
3. re-create the objects via the repository
4. re-import the data
?
Another comment:
The ownership can be viewed in the SYS.SCHEMA and SYS.OWNERSHIP view, see e.g.:
https://www.youtube.com/watch?v=4ZMfLHgOJXU
Markus