for maths its Rd Sharma for science I prefer question bankfor sst I prefer question bankfor english all in one is best

Best Reference Book for Class 9: NCERT
NCERT (National Council of Educational Research and Training) textbooks are considered the best reference books for Class 9 students. These books are widely used in schools across India and provide comprehensive coverage of the syllabus.

Benefits of NCERT Books:
- Aligned with the CBSE curriculum: NCERT books cover the topics and concepts prescribed by the CBSE board, making them ideal for exam preparation.
- Clarity and simplicity: The language used in NCERT books is easy to understand, making complex topics more accessible to students.
- Conceptual understanding: NCERT books focus on building a strong foundation of concepts, helping students grasp the fundamentals of each subject.
- Practice questions: NCERT books include a variety of exercises and problems for students to practice and test their understanding of the material.
- Supplementary materials: NCERT books also come with additional resources such as sample papers, solutions, and revision notes to aid in exam preparation.

How to Use NCERT Books Effectively:
- Read the chapters thoroughly and make notes for each topic.
- Solve the exercises and practice questions provided at the end of each chapter.
- Refer to the supplementary materials for additional practice and revision.
- Use NCERT books as a primary resource for studying and understanding key concepts.
In conclusion, NCERT books are the best reference books for Class 9 students due to their alignment with the CBSE curriculum, clarity of content, focus on conceptual understanding, and supplementary materials for exam preparation. Students can effectively use these books to enhance their learning and excel in their academic pursuits.