Dear Jitendra,

In order to crack SRM entrance exam it is important that your concepts should be clear. If you want you can take help of NCERT books for your preparation it will help you to build your fundamentals strong. 

Apart, from NCERT you can recommended below books for your preparation

Mathematics

RD Sharma

Arihant books

Physics

HC Verma

Chemistry

OP Tandon

You should also refer to previous year papers to understand the level of the exam and type of questions asked in the exam and solve complete mock test series for your practice.

All the Best!!