The best approach to planning study materials for diverse subjects in UPSC involves creating a structured schedule that allocates time effectively to each subject. This can be done by identifying syllabus requirements and prioritizing topics based on their relevance and weightage in the exam. Using various resources—such as books, online courses, and previous years’ papers—can enhance understanding. Regular revision and self-assessment tests are crucial to track progress. Additionally, incorporating interdisciplinary perspectives encourages not just rote learning but also critical understanding, making the preparation more holistic.