Question

what is public interest what are its benefits

Answer 1

Hey mate!

I am here with your answer!

This is the public interest test. A public authority can only withhold the information if the public interest in maintaining the exemption outweighs the public interest in disclosure. The public interest here means the public good, not what is of interest to the public, and not the private interests of the requester.

The public interest is "the welfare or well-being of the general public" and society.

Hope this will help you!