Hello Arul Mozhi

My Opinion is Self Learning is best.  You can go through total syllabus cooly you need to be more carefully you should prepare a timetable work according to it and never break the table table. First some details about JEE MAINS. I mean examination details which pattern how many questions will be there and some questions they ask twisting some are direct questions. Next clearly Observe the Exam Syllabus which is most important. You have same syllabus which you study for Intermediate or +1 & +2. You have the Mathematics 1 &2 , Physics  1 & 2, Chemistry 1 & 2. Learn the concept perfectly after learning the concept do the bits related to same topic. I am attaching the syllabus link to you

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

When you are close exam then do practice their is a quote practise makes man perfect. Just practise as many as you can. Increase your score in mock tests. Estimate yourself find your weak points.

Hope this will be helpful

Thankyou.

Hello Arul

I am assuming, that if you're asking this question then probably you had completed your class 12th or may be you're in in your class 11th thinking to go for kota or joining some other coaching in some city.

If you're in your class 12 and had already appeared for jee mains ,then after results you probably already knew about your focus on studies 

If you scored well , then i will say you should definitely give yourself a chance for preparing by selecting right institute for yourself .

And if your score is not so good then i should say you can look for qnother options but do it quickly , and if you have intrest in engineering thrn you should not look into score this year just collect your confidence and join coqching , because in drop year you get less time even you're prepared for 12th course still the type of questions in jee mains are much more different so you should join coaching quickly because you had no time to spare.

And if you just reach 11th class then , if you think you can prepare from home that's good there are many online study materials which you can look into you can also try Unacademy they had very good jee mainn courses.

You can get information about books from anywhere , but one thing you should keep in your mind that you had to focus alot in self study because, there is only you , keep motivating yourself throughout the course of motivation it's difficult but you can do this.

But in coaching material,faculty , self judging mock tests are easily available but it's depends on you how much focussed you're.

Thankyou