Dear Dhiru,

In order to score good marks in your VITEEE exam you can refer NCERT books. 

It will help you to clear your concepts and to build your fundamentals strong. 

Apart, from NCERT books you can go for below recommended books

Physics

- Arihant series- DC Pandey

- HC Verma

- MCQ question bank by D Mukherjee 

Mathematics

Arihant Series- SK Goyal

RD Sharma

Chemistry

OP Tandon

It is recommended to solve previous year papers to know the exam pattern and level of the questions and solve complete mock test series as much as you can for your practice.

All the Best!!