Memorizing vast amounts of information for UPSC requires effective strategies like the memory palace technique, which helps visualize and organize data. Utilizing mnemonics can aid in recalling complex facts or lists. Creating concise notes and summaries during the study process allows for easier review. Frequent revision strengthens retention, while studying in shorter, focused sessions prevents fatigue. Additionally, engaging with the material through discussions or teaching it to others reinforces understanding. Incorporating these techniques into daily preparation can make the vast syllabus more manageable and enhance memory recall during examinations.