hello faizan,

If you have scored good marks in 1 year, then you will be eligible for changing your branch. It also depends on the availability of the seats in the particular branch. You have to score an aggregrate percentage of more than 75% to change any branch. You have to simply fill a branch change form from your college after giving the  2 sem exams.

Hope your querry is answered, if you have any query please ask in comment below.