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 typical qualitative interpretation of the GATE SCORE?
What is GATE percentile score?
What is the formula for calculating GATE score?
How are people evaluated in GATE? What do I need to know about GATE score cards?
Are there any online tests available for GATE 2010?
Where can I get model test papers for GATE?
What has the individual weightage of different topics in different years of GATE?
What is GATE paper structure this time?
Is GATE objective type this time?
Where can I discuss the previous year GATE question papers?