dear dhairya ,

Here is the syllabus of JEE Main 2018 exam :

Mathematics

• Sets, Relations, and Functions
• Complex Numbers and Quadratic Equations
• Matrices and Determinants
• Permutations and Combinations
• Mathematical Inductions
• Sequences and Series
• Binomial Theorem and its simple applications
• Limit, Continuity, and Differentiability
• Integral Calculus
• Differential Equation
• Co-ordination Geometry
• Three dimension Geometry
• Vector Algebra
• Statistics and Probability
• Trigonometry
• Mathematical Reasoning

Physics

• Physics and Measurement
• Kinematics
• Laws of Motion
• Work, Energy and Power
• Rotational Motion
• Gravitation
• Properties of Solids and Liquids
• Thermodynamics
• Kinetic Theory of Gases
• Oscillations and Waves
• Current Electricity
• Electrostatics
• Magnetic Effects of Current and Magnetism
• Electromagnetic Induction and Alternating Current
• Electromagnetic Waves
• Optics
• Dual Nature of Matter and Radiation
• Atoms and Nuclei
• Electronic Devices
• Communication Systems

Chemistry (Physical)

• Some basic concepts in Chemistry
• States of Matter
• Chemical Thermodynamics
• Solutions
• Equilibrium
• Redox Reactions and Electrochemistry
• Chemical Kinetics
• Surface Chemistry
• Atomic Structure
• Chemical Bonding and Molecular Structure
• Chemistry (Inorganic)
• 
  
• Classification of Elements and Periodicity in Properties
• General Principles and processes of isolation of metals
• Hydrogen
• s-block elements
• p-block elements
• d and f- block elements
• Coordination Compounds
• Environmental Chemistry
• Hydrocarbons
• Chemistry (Organic)
• 
  
• Purification and characterization of Organic compound
• Some basic principles of Organic Chemistry
• Hydrocarbons
• Organic compounds containing Halogen, Oxygen, Nitrogen
• Polymers
• Biomolecules
• Chemistry in Everyday Life
• Principles related to practical chemistry

I hope this will help you. Work hard and prepare smartly for your Exam. My best wishes with you.

Hey Aspirant,

Mostly JEE Mains is overall the same each year. You must thoroughly study NCERT. Solving previous year papers is a key to success in JEE Mains. But overall you must focus on your NCERT Syllabus and must also solve study material of different coaching institutes.

Best of luck