You can follow below strategy to crack your exam-

1- You should first analyze the paper pattern and syllabus of the exam. So, you can prepare accordingly.

2- Try to clear your basics.

3- Focus on the topics which caries more weightage in the exam.

4- Physics: Concentrate more on topics like Electrostatics, Current Electricity, Effects of Electric Current, Electromagnetic Induction and semiconductor devices.

- Chemistry: NCERT is best suited for the preparation of Inorganic Chemistry. Focus particularly on areas like Atomic Structure, Electrochemistry, Biomolecules, Organic Nitrogen Compounds, Alcohols and Ethers.

- Mathematics: The areas which demand maximum attention include Vector Algebra, Analytical Geometry of Three Dimensions, Integral Calculus and its Applications.

5- Make a proper schedule.

6- You can prepare your important notes for your revision.

7- You should solve complete mock test series to analyze your preparation level on regular basis.

All the Best!!