Study aids like flashcards play a crucial role in memorization for UPSC. They facilitate active recall, promoting better retention of information such as important dates, definitions, and key concepts. By reviewing flashcards regularly, candidates can reinforce their memory, enhance their understanding of syllabus topics, and improve the speed of information retrieval. This technique simplifies complex subjects, breaking down content into manageable parts, thus making revision more efficient. Furthermore, incorporating visual elements on flashcards can assist in memory retention, offering a multi-sensory approach to learning that benefits aspirants preparing for one of the most competitive exams.