Hello Gururaj,

Here are some of the important sections you need to prepare thoroughly for JEE mains subject wise:

1. Physics:

• Electrodynamics
• Thermodynamics
• Mechanics
• Modern physics
• Simple harmonic motion
• Waves
• Ray/ wave optics
• Atoms and nuclei
• Motion in straight line, plane

2. Chemistry:

• Organic Chemistry
• P, d, f block elements
• Coordination compounds
• Kinetics
• Equilibrium
• Surface chemistry
• Electrochemistry
• Solid states

3. Mathematics:

• Calculus: integration, differentials
• Limits and continuity
• Probability
• Vectors
• 3D geometry
• Determinants
• Matrices
• Trigonometry