Hii..

If you want to crack GATE examination or any other examination you have to be first get it in your mind that you have to hard work without hard work you can do anything make a timetable and  be persistence with your timetable get time to revise again and again your topic and  syllabus go through every single point of your syllabus clear your Basic concept .And study more and more from manybooks, clear concept, practice alot.

And be determined for whole 4 year..hope the best 

All the best!!