Hi Adarsh!

Please go through the list of best books for JEE Mains given below. Hope these books would be helpful to you in preparing well for the exam.

Maths Books

1. R. D. Sharma
2. Trigonometry & Co-ordinate Geometry by S. L. Loney
3. Higher Algebra by Hall Knight
4. Problems in Calculus of One Variable by I. A. Maron
5. NCERT Books (Mathematics XI & XII)

Good Luck :)

Hey Adarsh,

It is very important to assess your level of preparation of a particular topic before choosing a perfect book that can supplement you preparation well.
If you are:
1) A beginner (i.e. you need to brush up your basics) - solve NCERT exercises roughly.
2) An Intermediate (i.e. strong basics but need to practice) - Solve questions from R.D sharma or A DAS GUPTA
3) An Expert - (i.e. confident to solve questions) - give mocks / solve previous year questions to increase speed & accuracy.

I hope this will help you!