Hey Aspirant,

Hope your preparation are going well,

As you want to know about the JEE Mains preparation. In Jee Mains, going over NCERT is crucial, especially for Chemistry. Almost all of the questions asked in JEE-Mains were found in NCERT, so going through NCERT thoroughly can ensure you get a good score in chemistry. However, this is not the case in all subjects.

In Physics, specifically refer to HC Verma, particularly the Objective which will help you gain confidence in the subject.

However, there is one chapter in physics (Communication systems) for which you must consult your NCERT, and believe me when I say that that chapter is extremely difficult.

I would recommend going through any of the packages of good coaching institutes for Maths. That would be self-contained.

For tips to crack the JEE mains:

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

I hope this will help you,

Best of Luck ;)