Hello dear..Nation Council Of Educational Research and Training is an autonomous organization of the Government of India.

NCERT is not compulsory, It's optional.NCERT books will help you a lot for your preparations..NCRT books will give you a deep understanding of your subject in simple language so that you can easily understand the topics and develop your own conscience.

B.Sc math entrance exam covers Physics, Chemistry and Mathematics ,50 questions from each section.If you thoroughly study your 10+2 books , you will definitely crack your exam.

Good Luck