Hello,

That depends on the college administration. You need to ask your college examination branch for the details. Generally you will not have to give all the subjects again you will only have to give the supply exam again provided you have enough credits to go to the next semester. If you are eligible to next semester then you don't have to give all the exams. But if you are not eligible to go to next semester then you will have to repeat the semester again and give all the exams again. If you have failed only one subject and you have enough credit to pass then you will have to give only the supply exam again.