Hello aspirant,

Please mention the specific year of the B.SC course that you are pursuing so that the student experts can provide you the answer accordingly. Mind you on the fact, if you're n the second or third year of B.SC computer science, then you can't change to BCA rather you have to start freshly but there will be academic loss. Rather, it is suggested for you to pursue MCA after you complete your under under graduation. But if you're in first year, then it's possible to change from BSC to BCA. So check if there are any vacant seats so as to pursue in the college or not and give a valid reason to the authority while changing your course.

Hope, this answer helps you.