You can show a widget with recent active users in dashboard or index pages. Have you gone through the code which is responsible for recent active users? It is possible

So what is the code? can you share it to me? thanks

I believe you are referring http://demo.oxwall.org/admin/users/recent page.

This section of code is resided in system plugin.

yes, so what code will i put to view the recent login in index page? Thanks

In ow_system_plugins folder, you have admin->components->user_list.php. This component is responsible for displaying users.