you can prepare according to it.

Here I’m telling you some tips

Plan your time accordingly while solving JEE (Main) papers. In Maths use short methods for calculations, skip irrelevant steps to save time.
One should be clear about the concepts and formulae.
Solve various problems with precision and guidance of your teachers.
Try to improve your speed and accuracy in order to succeed.
Practise regularly and avoid using calculators for JEE (Main) preparations. Your mental strength and memory will witness a rapid upsurge in this scenario.

Try to solve the easier questions first before moving onwards to the tougher section. Give it your best shot and attempt all the questions.
A positive outlook and dedicated preparation will help.
Students who are following the Computer Based Testing (CBT) procedure for attempting JEE Main through Computer Based Testing (CBT) remember to follow a sequence needs to be followed while completing the questions.
Practice as many Mock Test papers for the exam.
While solving questions, try to click on the right options pertaining to different subjects such as Physics, Chemistry and Mathematics have been dealt with.
Try to cover various topics before submitting your papers.

Here is the syllabus
Chemistry Syllabus
Physical Chemistry
Some Basic Concepts in Chemistry
States of Matter
Chemical Bonding and Molecular Structure
Chemical Thermodynamics
Solutions
Equilibrium
Redox Reactions and Electrochemistry
Chemical Kinetics
Surface Chemistry
Atomic Structure

Inorganic Chemistry
Classification of Elements and Periodicity in Properties
General Principles and Processes of Isolation of Metals
Hydrogen
S-Block Elements (Alkali and Alkaline Earth Metals)
P-Block Elements
d- and f- Block Elements
Co-ordination Compounds
Environmental Chemistry

Organic Chemistry
Purification and Characterization of Organic Compounds
Some Basic Principles of Organic Chemistry
Hydrocarbons
Organic Compounds containing Halogens
Organic Compounds containing Oxygen
Organic Compounds containing Nitrogen
Polymers
Biomolecules
Chemistry in Everyday Life
Principles related to Practical Chemistry


Physics Syllabus
Section A
Physics and Measurement
Kinematics
Laws of Motion
Work, Energy and Power
Rotational Motion
Gravitation
Properties of Solids and Liquids
Thermodynamics
Kinetic Theory of Gases
Magnetic effects of Current and Magnetism
Oscillations and Waves
Electromagnetic Induction and Alternating Currents
Electrostatics
Electromagnetic Waves
Current Electricity
Optics
Atoms and Nuclei
Electronic Devices
Communication Systems

Section B
Experimental Skills

Mathematics Syllabus
Sets, Relations and Functions
Complex Numbers and Quadratic Equations
Matrices and Determinants
Permutations and Combinations
Mathematical Induction
Binomial Theorem and its Simple Applications
Sequences and Series
Limit, Continuity and Differentiability
Integral Calculus
Differential Equations
Co-ordinate Geometry
Three Dimensional Geometry
Vector Algebra
Statistics and Probability
Trigonometry
Mathematical Reasoning