Dear Aspirant,

There are total of 150 questions and there are 4 sections
1.Physics
2.chemsitry
3.logical reasoning and English proficiency
4.mathematics
The duration for paper is 3 houres and paper is conducted in online mode through computer based test.
The best book for logical reasoning is
Guide to logical reasoning and English proficiency for Bitsat  by disha experts .
In this book you find past 6 years solved papers.

Thanks
All the very best