In order to start your preparation you should be aware of the syllabus and exam pattern. You can take help of previous year papers to understand the exam pattern and difficulty level. You should be aware of the important topics and weightage wise topics. So, that you can focus them more. You can make your own study plan and follow it. So, that you can complete the syllabus on time and you get proper time for revision.

You can also chek the preparation tips from the given below link

How to Prepare for GATE 2018

Good Luck!!

There is no special need to prepare for GATE from the very first year. You must enjoy the first year and participate in extra-curricular activities of your college or University. You can start from 3rd year end if you are worried about the preparation.

I will suggest you to take your time and explore what is it you want out of engineering.

Get good in your topics and subjects and good preparation in it shall help you with the GATE entrance as well.

Clear all your doubts during your preparation in your college from first year itself.

Go through news papers, daily updates, general awarness, English vocab and gate previous year papers as of now to start.

Most importantly work on your profile making and get to learn in your first 3 years atleast.

Good luck!