No it is not necessary to go to for any coaching center to clear national eligibility test of UGC. Here I am giving you some preparation tips for UGC national eligibility test below ..

You must give at least 12 to 14 hours per day for studies.. you should start preparation start as soon as possible ..
First of all you must know complete syllabus and exam pattern of UGC NET examination.. Then you have to give more attention for important topics of UGC NET examination.

For better preparation you have to solve the previous year question paper of UGC NET examination or you can buy books for it
You have to make notes for important topics of UGC NET examination and revised them regularly..