The RD Sharma, RS Aggarwal, and Lakhmir Singh books are, without a doubt, the finest for CBSE board exam preparation. The content and curriculum of these books are the finest in the country. The books have been prepared after extensive study, with students' growth in mind. As a result, it is critical for students to properly review the suggested RD Sharma, RS Aggarwal, and Lakhmir Singh curriculum for any test. These books can also help you ace any competitive exams like JEE and NEET.