read this http://gatecse.in/cbse-net-question-papers-for-cse/
only CBSE/UGC NET exam is for computer science students .
check this site for all info http://cbsenet.nic.in/CMS/Public/View.aspx?page=79
UGC NET Computer Science & Application is the Exam in which Computer Science students can appear.
Get the complete details here.
The tests are there but it ain't free. Cost is...