NCERT Textbooks for Class 11 and 12 cover most of the BITSAT Syllabus. Therefore, they can be considered to be enough for BITSAT Preparation. These books cover all the important topics, essential questions and important formulas for the BITSAT exam.
BITSAT is not a day preparation exam. Day-to-day practice is a must for a better score in the exam. BITSAT preparation will need a minimum of 3 months of regular practice.
For every beginner, NCERT is the most beneficial book for studying. NCERT is the most effective book with the ease of language to study. After NCERT students can refer to the BITSAT Explorer by MTG and Arihant. These books also contain CDs that can help with mock tests. Some other topic-wise references have been covered in the sections above.