Dear Student ,

You're in 2nd semester means now you're in 1st year . The Govt exams you are interested for have different syllabus .. but , yes .. some common subjects you can start preparing from your current academic year such as English , Aptitude , static GK etc, after your semester study hours ! But .. you must to be focused first that in which Govt exam you have kept in your 1st preference to crack .. based on your goal you can continue your preparation while studying in college .

GATE exam mainly taken for higher studies as well as for jobs in PSUs( most for B.Techs) .

and SSC CGL/ APSC  you can give after your graduation .

Hope you understand !