Hi aspirant,

Since you're in your first year, the first thing you can do is be aware of GATE syllabus. If you have not downloaded it yet, it must be the first thing you should do. Usually, your first-year college syllabus is not of much weightage in GATE. You should practice Maths a lot. You must plan your study after taking the analysis of previous years’ GATE papers. This will give you the idea that which subject usually has the highest weightage in GATE exam and about the topics asked from the particular subject most. 

Now, in your second year and third year, you should learn each concept and make sure you know the fundamentals of each topic. In the meantime keep solving previous year's question paper. 

In 4th year, join a GATE coaching if possible, if not then buy a test series from a reputed institute. This would help you in analyzing your performance.

All the best