Maintaining a study timetable for UPSC preparation is significant as it promotes discipline and organization, essential for covering vast amounts of material. A well-structured timetable helps candidates allocate sufficient time to each subject, ensuring balanced preparation across all areas. It also fosters regular revision and practice, reducing last-minute cramming. Additionally, adhering to a timetable helps mitigate stress and instills accountability. By tracking progress through their timetable, candidates can make informed adjustments to their study strategies.