To remember factual information for the UPSC, aspirants can employ techniques such as mnemonics, which create associations between concepts, and the spaced repetition method, promoting long-term retention. Employing mind maps can help visually organize information. Regular revision sessions and self-testing enhance recall. Furthermore, integrating content with current affairs can make learning more relevant and memorable. Using flashcards for quick reviews also aids in memorization. Ultimately, finding a personalized combination of these strategies will effectively improve retention.