BuddyPress.org

Hi @netweblogic. First requirement is that people can post events from the frontend, second is being able to set privacy levels for the events – public, for members only, etc, third is that at least one map can be attached to the event, etc. etc. etc.There are already a couple of feature-rich BuddyPress events plugins in the WP repo:
EventPress – https://wordpress.org/extend/plugins/eventpress/
Jet Event System – https://wordpress.org/extend/plugins/jet-event-system-for-buddypress/
Good luck.