Nikita, we have JEE Knockout packages that can help you in overall preparation for JEE. It is an online preparatory course and you can check that at: https://learn.careers360.com/knockout-jee-main-april.
Alternatively, you can rely on these books as well:

Physics Best Books:

NCERT Physics Class XI & Class XII
Concepts of Physics by H. C. Verma
Objective Physics By DC Pandey
Fundamentals of Physics by Halliday, Resnick and Walker
Fundamental Physics by Pradeep
Problems in General Physics by IE Irodov

Chemistry Best Books:

NCERT Chemistry textbooks for Class XI and XII
Physical Chemistry by OP Tandon
ABC of Chemistry for Classes 11 and 12 by Modern
Concise Inorganic Chemistry by JD Lee
Dinesh Chemistry Guide
Practise books by VK Jaiswal, MS Chauhan and N Awasthi

For the complete list of Mathematics and other books in Physics and Chemistry, pkease refer our article:
https://engineering.careers360.com/articles/best-books-for-jee-main

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