Balancing multiple subjects during UPSC preparation requires clear planning and organization. Firstly, create a realistic timetable, allocating specific times for each subject, ensuring that core areas are revisited regularly. Use a combination of active learning techniques, such as mind maps and summary notes, to facilitate integration of knowledge across subjects. Moreover, regular revisions and practice through mock tests can reinforce learning. Prioritizing currently relevant topics in areas like current affairs is also essential, helping maintain a cohesive understanding.