It not only helps in answering the problems but assists candidates to recognize what are the key points considered by experts while preparing the question papers. So far by analysing the JEE Mains Previous Year Question Papers, I got to know that basic understanding in the subjects are important. The topics given in the NCERT Books plays an important role in boosting the basic knowledge. And the problems asked in the JEE mains are mostly from the NCERT Class 11th and 12th Textbooks. Students Can Download free of cost pdf click here.