Currently I am using blender 2.83.10. After watching Blender Gurus tutorial on photorealism I switched the default datafiles\colormanagement folder with Filmic-blender that I got from github. Since then few of the object in the scene dont have a smooth light to shadow transition and are showing lighting artifacts. In order to fix this issue I have tried the following:
- Swapping back to original colormanagement folder.
- opening the scene in blender 2.91.
Still facing the issue.