ncert is best book for jee mains,but everyone cant do that.

Hello dear,
If you are enrolled in a decent coaching center, the best advice I can give is to stop serking advices on internet and trust your teachers. Do what they say, ask them your doubts and take inspiration from students who have cracked jee under your teacher's supervision.
Best of luck.

You can study only ncert for jee mains it is more than enough for jee main.and for physics h.c.verma and math r.d.sharma is good

https://www.quora.com/What-are-the-best-books-that-can-be-referred-to-for-JEE-Mains-and-Advanced-for-preparation-in-Physics-Chemistry-and-Mathematics

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