Aspirants can effectively utilize study materials for UPSC by selecting quality resources that cover the entire syllabus. Important materials include NCERT books for conceptual clarity, standard reference books for in-depth knowledge, and online resources for current affairs. It is advisable to follow a structured approach, integrating diverse resources while avoiding information overload. Daily newspapers and monthly magazines should be a part of their routine to stay updated. Regularly summarizing what has been studied helps solidify knowledge and improves retention.