To improve retention of information for tough subjects in UPSC, candidates can employ various techniques. Active learning strategies such as summarizing information, teaching others, or creating mind maps can enhance comprehension. Additionally, spaced repetition aids in long-term memory retention. Associating concepts with real-world examples or visual aids can make the content more relatable. Regular revision schedules and mock tests can reinforce learning while reducing anxiety. Creating a balanced study plan that includes breaks and relaxation is vital for maintaining focus and prevents burnout, further strengthening information retention.