Hi Yaswanth,

The chapter wise weightage analysis

@Physics

• Physical-world and measurement - 2%
• Kinematics - 3%
• Laws of motion - 3%
• Work energy and power - 4%
• Motion of System of Particles and Rigid Body - 5%
• Gravitation - 2%
• Properties of bulk matter- 3%
• Thermodynamics - 9%
• Behaviour of Perfect Gas and Kinetic Theory -3%
• Oscillation and waves - 3%
• Electrostatic - 9%
• Current electricity - 8%
• Magnetic Effect of Current & Magnetism - 5%
• Electromagnetic Induction & Alternating Current - 8%
• Electromagnetic waves - 5%
• Optics - 10%
• Dual nature of matter and radiation - 6%
• Atoms and nuclei - 3%
• Electronic devices - 9%

@Chemistry

• Basic Concepts of Chemistry - 1%
• Structure of atoms - 2%
• Classification of Elements & Periodicity in Properties - 2%
• Chemical Bonding and Molecular Structure - 5%
• States of Matter: Gases and Liquids - 2%
• Thermodynamics - 8%
• Equilibrium - 6%
• Redox reactions- 3 %
• Hydrogen - 2%
• S block elements - 2%
• Some p block elements - 2%
• Organic Chemistry: Basic Principles & Techniques - 4%
• Hydrocarbon - 3%
• Environmental chemistry - 2%
• Solid state - 2%
• Solution - 2%
• Electrochemistry - 2%
• Surface chemistry - 2%
• Chemical kinetics - 3%
• Isolation of elements - 2%
• P block elements - 5%
• D and f block elements - 4%
• Coordination compounds - 9%
• Haloalkanes and Haloarene - 3%
• Alcohols, Phenols and Ethers - 4%
• Aldehydes, Ketones and Carboxylic Acids - 4%
• Organic Compounds containing Nitrogen -2%
• Biomolecules- 3%
• Polymers -3%
• Chemistry in everyday life- 2%

@Biology

• Diversity of living organism -14%
• Structural Organisation in Plants & Animals - 5%
• Cell structure and functions - 9%
• Plant physiology - 6%
• Human physiology - 20%
• Reproduction - 9%
• Genetics and evaluation - 18%
• Biology and human welfare - 9%
• Biotechnology and its application - 4%
• Ecology and environment - 6%

Refer here for more info - https://medicine.careers360.com/articles/neet-chapter-wise-weightage-and-important-topics

Feel free to ask doubts in the Comment Section.

I hope this information helps you.

Good Luck!