Dear Ajay,

In order to start your preparation you should be aware of complete Syllabus, exam Pattern and Important topics.

To have an idea about the exam pattern and level of questions you can refer previous year papers

VITEEE paper is based on concept, speed, accuracy, time management and decision making power.

For concept refer NCERT books, For accuracy and time management practice a lot of questions. You can solve MCQs and complete mock test series.

You should make your proper time table according to your comfort. So, you can complete your syllabus and you get proper time for revision.

First, refer NCERT books as syllabus is based on them after completing NCERT books you can refer below recommended books

Physics

You can go for Arihant and H.C Verma

Chemistry

You can go for OP Tandon

Mathematics

You can go for RD Sharma and Arihant books.

Good Luck!!