Dear Aspirant,

IIT-JEE is one of the most popular competitive exam in our country and hence one of the most tough exams. No book or question bank is enough to clear the exam however, the combination of good books with you consistency will definitely help you crack the examination.

The first thing you have to do is to check the complete syllabus and figure out the areas you need to focus on. Then start with basics, use NCERT textbooks, they are very good. Then for subject wise preparation you could check for books like HC Verma. One thing which I would like to suggest you is get the material from some good coaching, their materials are really good and are made in accordance with the syllabus.

Here are few links to help you get started:

https://engineering.careers360.com/articles/how-prepare-for-jee-main
https://engineering.careers360.com/articles/jee-main-syllabus

Hope this helps. Thank you.