Hello aspirant,

See it is very difficult to predict the exact cutoff marks or rank that is required to gte into top NIT colleges of India through JEE mains Examination.

However, looking at the previous year JEE Mains cutoff, you would require around 150+ JEE mains marks/score or you would need a minimum rank within 25K to get admission in top NIT's/GFTI's/IIIT's Institutes of India. The tentative qualifying marks for GEN category (common rank list) students is 89.75 for GEN (EWS category) is 78.21, for OBC-NCL is 74.31, for SC is 54, 44 for ST & 0.11371730 for PWD candidates.

Further, please note that the above mentioned cutoff for JEE Mains is based on the previous year Qualifying cutoff, which changes every year since it depends on various factors, like : Difficulty level of the paper, previous year Cutoff trends, number of aspirants appearing the exam, etc.

Further, to know more about the JEE mains Cutoff for previous year and the expected cutoff for this year, you can follow the below mentioned link to know more about it : https://engineering.careers360.com/articles/jee-main-cutoff

Further, below is the JEE mains syllabus, along with the weightage of each chapters in each subjects :

JEE MAINS SYLLABUS FOR PHYSICS

Modern Physics:- 20 marks

Heat and Thermodynamics :- 12 marks

Optics:- 12 marks

Current Electricity :- 12 marks

Electrostatics :- 12 marks

Magnetics :- 8 marks

Unit, Dimension and Vector:- 4 marks

Kinematics :- 4 marks

Laws of motion :- 4 marks

Work, Power and Energy :- 4 marks

Centre Of Mass, Impulse and Momentum :- 4 marks

Rotation :- 4 marks

Gravitation :- 4 marks

Simple Harmonic Motion :- 4 marks

Solids and Fluids :- 4 marks

Waves :- 4 marks

Electromagnetics Induction and AC :- 4 marks

JEE MAINS SYLLABUS FOR CHEMISTRY

Transition Elements and Coordination Chemistry  :-  12 marks

Periodic table and Representative Elements :- 12 marks

Thermodynamics And Gaseous State:- 8 marks

Atomic Structure:- 8 marks

Chemical Bonding:- 8 marks

Chemical And Ionic Equilibrium:- 8 marks

Solid State And Surface Chemistry :- 4 marks

Nuclear Chemistry And Environment:- 8 marks

Mole Concept :- 4 marks

Redox Reaction :- 4 marks

Electrochemistry :- 4 marks

Chemical Kinetics:- 4 marks

Solution and Colligative Properties :- 4 marks

General Organic Chemistry:- 4 marks

Stereochemistry:- 4 marks

Hydrocarbon :- 4 marks

Alkyl Halides :- 4 marks

Carboxylic Acid and their Derivatives:- 4 marks

Carbohydrates,amino acid and Polymers :- 4 marks

Aromatic Compounds :- 4 marks

JEE MAINS SYLLABUS FOR MATHEMATICS

Coordinate Geometry  :-  20 marks

Limits, Continuity and Differentiability :- 12 marks

Integral Calculus :- 12 marks

Complex numbers and Quadratic Equation :- 8 marks

Matrices and Determinants :- 8 marks

Statistics and Probability :- 8 marks

Vector Algebra :- 8 marks

Sets, Relation and Function:- 4 marks

Permutations and Combinations :- 4 marks

Binomial Theorem and Its Application:- 4 marks

Sequences and Series:- 4 marks

Trigonometry :- 4 marks

Mathematical Reasoning :- 4 marks

Differential Equation :- 4 marks

Statics and Dynamics :- 4 marks

Differential Calculus :-  4  marks

Further, to know more about the JEE mains Syllabus and weightage of each chapters, you can follow the below mentioned link to know more on this:-

https://engineering.careers360.com/articles/jee-main-syllabus-weightage

I hope that this will help.