Hello Aspirant,

NEET is the single largest national entrance test for Medical courses therefore there is huge competition. So if you start from zero then within three months even with full dedication you won't be able to get any top college because on such preparation you can qualify NEET but not with very good marks but still in last three months, if you start your preparation then I would recommend you to focus more on the chapters which have more weightage as compared to others so that you can score little better in NEET which can of course take you to good colleges under your state quota. So I am enlisting down important chapters along with their weightage in NEET :-

Biology

• Diversity of Living Organisms 14%
• Cell: Structure and Function 9%
• Human Physiology 20%
• Reproduction 9%
• Genetics and Evolution 18%
• Biology and Human Welfare 9%

Physics

• Motion of System of Particles and Rigid Body 5%
• Thermodynamics 9%
• Electrostatics 9%
• Current Electricity 8%
• Magnetic Effect of Current & Magnetism 5%
• Electromagnetic Induction & Alternating Current 8%
• Electromagnetic Waves 5%
• Dual Nature of Matter and Radiation 6%
• optics 10%
• Electronic Devices 9%

Chemistry

• Structure of Atom 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%
• s-Block Elements 2%
• Some p-Block Elements 2%
• Organic Chemistry: Basic Principles & Techniques 4%
• Hydrocarbons 3%
• Environmental Chemistry 2%
• Solid State 2%
• Solutions 5%
• Electrochemistry 2%
• Chemical Kinetics 3%
• Surface Chemistry 2%
• Isolation of Elements 2%
• p-Block Elements 5%
• d- and f-Block Elements 4%
• Coordination Compounds 9%
• Haloalkanes and Haloarenes 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%

If you are preparing for NEET 2021 then to help you in your preparation we have some resources which you can access from the link given below :-

https://learn.careers360.com/knockout-neet-may/?product=50&icn=knockout-neet-2021-may&ici=

I hope this information helps you.

Good Luck!!