In the 1st-year, I've got 7 backs. When will the back exam be conducted? I gave my 100% & studied a lot but still was not able to clear it.

You need to work hard for this now. Search for any type of question bank (if there) for your exams. Mark important questions to study. Don't try to by heart the topics. Try to understand them and write them in your way. Now, you have to study through out the semister, complete your syllabus before e