To get admission under JAC candidates needs to score more than 80 percent aggregate in five subjects which must include pcm and one thing more that there should be individually more than 80 percentage in maths which needs proper attention to the important subjects.

First of all you need to be positive it is possible as many candidates before you achieve it so you should too with little of hard work and more of smart work.start with NCERT books as it is the soul of exams many questions ask from it.after start with previous year paper so that you gel up with the pattern of the examination then after start giving mock tests to know your position.

Dont just give mocks try to learn from it where you lack what is your strengths focus on time management.read all the subjects dont left any one.put some efforts you will definitely going to crack it for sure.

BEST OF LUCK..