Preparing for the UPSC exam requires a wide range of resources to cover the vast syllabus. Here are some of the best books and resources for UPSC exam preparation:

1. NCERT Books: NCERT books are the best resource for basic concepts and are recommended for beginners. They cover a wide range of topics and provide a strong foundation for advanced topics.

2. Standard Reference Books: Standard reference books are recommended for advanced topics in each subject. Some of the popular reference books are ‘Indian Polity’ by M. Laxmikanth, ‘Indian Economy’ by Ramesh Singh, ‘Modern India’ by Bipan Chandra, and ‘Oxford Atlas’.

3. Newspapers and Magazines: Newspapers and magazines are a great resource for current affairs. The Hindu, Indian Express, and Economic Times are some of the popular newspapers, and Yojana, Kurukshetra, and Frontline are some of the popular magazines.

4. Online Resources: There are various online resources available for UPSC exam preparation. Websites like ClearIAS, Mrunal, and Insights provide free study materials, current affairs, and test series.

5. Coaching Institutes: Coaching institutes provide guidance and a structured approach to UPSC exam preparation. They provide study materials, test series, and expert guidance. Some of the popular coaching institutes are Vajiram and Ravi, Shankar IAS Academy, and Insights.

In conclusion, UPSC exam preparation requires a combination of books, newspapers, magazines, online resources, and coaching institutes. It is important to choose the right resources that suit your learning style and stick to a consistent study plan to crack the exam.