Dear Aspirant,

If you are starting your studies from mid-term then I would recommend you to start with biology. It takes a lot of time to learn all the concepts so find out which of them are having high weightage and study those. For mathematics you must solve the sums that are repeated every year with slight changes first and then focus on problems that have higher weightage. Physics is full of derivations and sums. It's better to learn most of the tough derivations first and then solve problems related to them. If you study in this way you can surely pass your exams with good marks.