can be good news! look at this:
http://www.edulix.com/forum/archive/index.php/thread-83641.html (should register first to see) there is a discussion similar to your case.
Action means that your application is under review by the department, and if they need more documents for administrative stuff (not about your qualifications), it may mean that your application is at least shortlisted (or you may be admitted). keep us updated on your status.