Peer study groups can greatly benefit UPSC aspirants by fostering a collaborative learning environment. Engaging with peers allows students to share knowledge, exchange resource materials, and clarify doubts. Group discussions encourage diverse perspectives, enhancing critical thinking and analytical skills vital for the examination. Additionally, peers can provide emotional support, motivation, and accountability, making the preparation process less isolating. Regularly scheduled group meetings help instill discipline and create a structured study routine. Overall, peer study groups can enhance understanding of subjects and improve retention through collective learning experiences.