In general a regular classroom program is not required. However, solving the practice papers of some good GATE coaching institutes may help. But you must refer the standard books first for building basic concepts.
What is the individual weightage/ no of questions of different topics in different years of GATE?
Where will the test center be, in my city?
Why should one take GATE exam?
Can I give GATE paper other than my graduation discipline?
When will the GATE result declared?
I don't understand TOC, or subject X. Should I study it?
I'm not sure I can crack GATE. Should I go for it?
I'm a working professional, I don't have time. Can I even dream of GATE?
How to start GATE preparations?
How to perform self study?