Hi Ashish,
You can likely resolve this by installing tortoise git as stated here: https://docs.mendix.com/refguide/using-version-control-in-studio-pro/#external-tools
Afterwards in the project folder, you look for the conficted folder, right click, and resolve with tortoise git.
Here is another forum post about the same:
https://forum.mendix.com/link/space/studio-pro/questions/117697
I hope this helps.