Hi, @Nitin Singh Thank you for posting in Microsoft Q&A forum.
Like you mentioned, we can create a configuration baseline to check the existence of reigistry.pol file, and create the device collection baseline on the deployment result:
We can also create a collection that registry.pol exits, and run CMPivot and run below command for this collection to get the last modified Date and size:
File('c:\Windows\System32\GroupPolicy\Machine\Registry.pol')
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