I would suggest you to go through the below points - 1. Know the syllabus very well.2. Read standard books only as there are many books available in the market so it is advisable to use the books which make all your concepts clear and which are easy to understand. 3. Understand the weightage of topics properly. 4. Proper Revision plan should be followed.5. Mock Tests and Practice Tests should be done as this will help you to learn time management skills and this will also make you familiar with the exam pattern.Apart from that, below I am mentioning weightage wise topics which will be helpful for your preparation - Maths - Vectors - 7% questions Probability - 7% questions Three Dimensional Geometry - 6% questions Matrices Determinants - 5% questions Limits - 5% questions Indefinite Integration - 5% questions Sets, Relations and Functions - 5% questions Definite Integration - 5% questions Theory of Equations - 4% questions Permutation and Combination - 4% questions Complex Numbers - 4% questions Straight Lines - 3% questions Parabola - 3% questions Continuity and Differentiability - 3% questions Differential Equation - 3% questions Circles - 3% questions Binomial Theorem- 3% questions Dynamics-3% questions Pairs of Straight Lines - 3% questions Sequences and Series- 3% questions Trigonometric Ratios and Identities- 3% questions Statistics - 3% questions Ellipse - 2% questions Inverse Trigonometry- 2% questions Hyperbola - 2% questions Trigonometric Equations - 2% questions Heights and Distances - 1% questions Mathematical Induction-1% questions Application of Derivatives - 1% questions Exponentials and Logarithms- 1% questions Differential Coefficient -1% questions. Physics- Current Electricity - 7% questions Heat and Thermodynamics 6% questions Electrostatics 6% questions Magnetic effect of Current and Magnetism 6% questions Work Energy Power 5% questions Wave Motion 5% questions Simple Harmonic Motion 5% questions Physics of Nucleus 5% questions Solids and Semiconductor Devices 5% questions Modern Physics: (Atomic Models) 5%questions Center of Mass, Impulse and Momentum 5% questions Laws of Motion 4% questions Rotational Motion 4% questions Electromagnetic Induction3%questions Ray Optics 3% questions Units Dimensions Errors 2% questions Vectors Motions 2% questions Motions In 2D 2% questions Fluids 2% questions Wave Optics 2% questions EM Waves 2% questions Alternating Current 2% questions Heating and Chemical Effects of Current 2% questions Capacitance 2% questions Elasticity 2% questions Radioactivity 2% questions Principles of Communication 2% questions X-Rays 2% questions Circular Motion 1% questions Gravitation 1% questions Motion in One Dimension 1% questions. For chemistry you can check the comment below.