Hello aspirant,

Greetings! 

It's well and good to hear that you are preparing for UPSC right from first year of Engineering. I think it's the right time to decide your goal and if you have a strong will to quality CSE examinations then you must first of all go through the whole syllabus of UPSC examinations because it is very complicated one.

Then you must make a habit to read newspapers that would enrich your general knowledge.

Secondly, you need to read NCERT of class 6 to 12 and choose a optional subject on which you have to a good hold.

Hope it helps. 

Good luck!