Dear aspirant,

According to your question as your exam is knocking at the door so keep your strategy and work plan as simple and crisp as possible because there is no use of going through the tough chapters.

First shortlist those topics which can be scored easily if came into exam like in maths statistics, mathematical reasoning,diffrential calculus and integration with coordinate geometry.

Similarly you have to do it for chemistry and physics also. It's your job to shortlist these topics you would better know your strong and weak points.