Is this the report you’re after? Or are you after a dashboard?

https://helpcenter.veeam.com/docs/one/reporter/restore_operator_activity.html?ver=110

report. But i am not finding the VBR widget in Veeam one web client

Check out https://helpcenter.veeam.com/docs/one/reporter/navigate_reporter.html?ver=110

Should steer you round the various widgets etc and get you up and running

This may be a dumb question but is the VBR server or VEM added to VONE?  You need that to see the dashboard in the web client.  If done already ignore me. 

In order to add that, the widget of VBR is not showing. When I go to dashboard, there will be multiple widgets. In that VBR is not seen.

Yes cause in the VONE console not web client you need to add either your VEM or VBK server first to show the widget. You don't add it is in the web console.