hello dears,
Can
anybody explain me the member event types,what are those??? If i m not
wrong those are the member events for the particular group on left
side, because they match a rule that the reason incident has been
generated and they are been shown in these event groups.

Hi ,

An Event Type Groups reports ranks event type groups by reported events that belong to each group. The event type groups give a general feeling about the type of network activity reported to MARS.

Check out the below link for further information !!

http://www.cisco.com/en/US/docs/security/security_management/cs-mars/5.3/user/guide/local_controller/appmars.html#wp634797

Hope to Help !!

If helpful do rate the post.

Ganesh.H