RS Aggarwal/RD Sharma Mathematics Textbook: These are popular choices known for their detailed explanations and a wide range of practice problems. They are excellent for students who prefer thorough and comprehensive preparation.

NCERT Exemplar Problems in Mathematics: This book offers challenging problems to boost mathematical ability. It is particularly useful for advanced students or those who want to challenge themselves beyond the basic concepts.

Arihant All in One Mathematics: This resource provides comprehensive coverage of the syllabus with chapter-wise summaries, solved examples, and practice questions. It is a valuable addition for students who need a more detailed and thorough understanding.

Oswaal CBSE Sample Question Papers - Mathematics: This book offers practice questions and solutions aligned with the latest CBSE exam pattern. It helps students get accustomed to the exam format and enhances their exam preparation.

Science (Physics, Chemistry, Biology)

NCERT Textbooks: These are the essential resources for understanding core concepts and preparing for practical exams. They are invaluable for mastering the fundamental principles of science.

H C Verma Concepts of Physics Volume 1: This book offers further explanation and practice problems for physics. It is particularly recommended for students who wish to explore physics in more detail or at a higher level.

Pradeep's Fundamental Science Series: This set provides comprehensive coverage of all three science subjects with clear explanations and illustrations. It is a great resource for students who benefit from visual aids and detailed explanations.

Arihant All in One Science: This book offers subject-specific coverage with chapter-wise summaries, solved examples, and practice questions. It is particularly useful for students who need a more focused preparation strategy.

Oswaal CBSE Sample Question Papers - Science: This book provides practice questions and solutions aligned with the latest CBSE exam pattern for all three subjects. It helps students familiarize themselves with the exam format and improve their problem-solving skills.

Social Science (History, Civics, Geography, Economics)

NCERT Textbooks: These textbooks provide a clear understanding of historical events, social structures, geographical concepts, and economic principles. They are the foundation for understanding these subjects.

Together with Social Science by Rachna Sagar: This book offers simplified explanations and practice exercises for all four subjects. It is particularly useful for students who find the social science subjects challenging or need a more straightforward approach.

Xam Idea Social Science: This resource features colorful maps, illustrations, and interesting facts to make learning engaging. It is a great choice for students who prefer a visual and interactive learning experience.

Arihant All in One Social Science: This book provides comprehensive coverage of the syllabus with chapter-wise summaries and practice questions. It is ideal for students who need a more detailed and thorough preparation.

Oswaal CBSE Sample Question Papers - Social Science: This book offers practice questions and solutions aligned with the latest CBSE exam pattern for all four subjects. It helps students get accustomed to the exam format and enhance their exam preparation.

Additional Tips

Consider Your Learning Style: Some students prefer detailed explanations while others prefer concise summaries and practice questions. Choose books that align with your learning style for better retention and understanding.

Utilize Online Resources: Online platforms like Khan Academy or YouTube videos can provide further explanation of difficult topics. They are valuable for students who need additional support or different perspectives on the material.

Form Study Groups: Collaborating with classmates can make the learning process more engaging and effective. Discuss concepts, share study resources, and provide mutual support to enhance your understanding and performance.

Take Regular Practice Tests: Regular practice tests and mock exams can help you assess your progress and identify areas for improvement. They are a great way to prepare for the actual exams.

Maintain a Study Schedule: Consistent preparation is key to success. Stick to a study schedule and stay focused on your goals to ensure that you cover all the necessary material in time.

Ask Your Teachers for Recommendations: Teachers can provide valuable insights and recommendations based on their experience and understanding of the curriculum. They can guide you towards the best resources for your specific needs.

In conclusion, the best reference books for CBSE Class 9 are the ones that work best for you. Experiment with different resources and find the combination that enhances your understanding and academic performance. Stay consistent, stay focused, and you will be well-prepared for your exams.