Hi Gurukaran.

I'd say that you can prepare for JEE mains in a year by using these books -

Mathematics

Vector algebra, A textbook of Matrices - Shanti Narayan

Funtions and Graphs - TMG

Calculus and Analytic Geometry - Thomas amd Finney

Physics

University Physics - Freedman and Young

Fundamentals of Physics - Halliday, Resnick and Walker

Concepts of Physics - HC Verma

Chemistry

University Chemistry - Bruce Mahan

Organic Chemistry - Solomons and Fryhle

Concise Inorganic Chemistry - JD Lee

Actually, you have to study NCERT textbooks thouroughly(everything in the book), before going to these books. NCERT texts would be of great help. but these books are for advanced studies.

OR you can opt for any DLP by reputed coaching institutes. They'll gice you the materials required to study.

Good Luck.

hi Gurukaran, if you want to crack jee-main exam without coaching then it is an easy task.there are few steps that you covered :

1.NCERT books(11th +  12th) - cover all the syllabus of ncert that is sufficient to crack the jee-main exam.

2.if you want some other books then - R.D.sharma(math),HC Verma(physics) etc.

3. solve previous years papers.

4.if you covered all things then you have another option online learning platform youtube -

a.etoos academy

b.akash itutor

c.ignited minds

d.mlearning

e.khan academy

good luck