Third year is the most crucial year of college life. This year alone has the potential to make or break you. However, this year’s achievements (if any) are more of a result of what one has done in the past two years. Anyway, third year is to hone your technical skills further if you’re looking for a technical job profile in future. Also, since most core companies may have an aptitude skill test along with a technical one, it is also one area you should be working upon at this point of time.
Beginning from sixth semester, you can start visiting the recruitment page of your target ‘core companies’, since this is the time they will start listing out their schedule for off-campus recruitment (if any).
Good luck and May the odds be ever in your favour!