Efficient strategies for note-taking during UPSC studies include employing the Cornell method, which divides notes into cues, notes, and summaries, enhancing retention. Additionally, making mind maps can visually organize information and identify relationships between concepts. Utilization of digital tools like Evernote or Google Keep allows for easy access and organization of notes anytime. Regularly revisiting and revising notes aids long-term memory. Prioritizing quality over quantity, focusing on key points, and summarizing them in one’s own words can further solidify understanding and facilitate efficient revision.