Effective note-taking during UPSC preparation can be enhanced through various methods. The Mind Mapping technique helps visualize relationships between topics, while the Cornell method facilitates organized notes and easy review. Summarizing chapters in one's own words reinforces comprehension and retention. Visual aids, such as charts and diagrams, can clarify complex concepts. Regularly revisiting and revising notes ensures persistent retention, while organizing materials by subject can streamline study sessions. Using colored pens or highlighting key terms aids in emphasizing essential information, making quick review easier when closer to the examination.