Common trends seen in successful UPSC candidates' study habits include a disciplined study routine, active revision, and consistent practice of both written and oral communication. Such candidates often prioritize a well-structured schedule, balancing multiple subjects while allowing time for breaks and self-reflection. They engage with varied resources, including complete syllabi and mock tests, to ensure comprehensive preparation. Collaboration with peers through discussions and study groups is also prevalent, enhancing understanding and retention. Lastly, successful candidates maintain motivation through inspirational stories, staying focused on their goal of serving the nation.