Group study benefits UPSC aspirants by fostering collaborative learning and diverse perspectives. Engaging with peers allows for discussion of complex topics, facilitating deeper understanding through shared insights. It encourages accountability, as members motivate each other to stay disciplined and consistent in their studies. Additionally, practicing mock tests and quizzes within a group can enhance performance awareness, identifying strengths and weaknesses. Through group study, candidates can collectively share resources and strategies, optimizing their preparation for the challenging exam ahead.