The UPSC Mains exam, consisting of nine papers, is known for its in-depth questions and extensive syllabus. Efficient time management is crucial for success in this exam. Prioritizing questions based on strengths and weaknesses, dividing the paper into parts, sequencing answers strategically, avoiding leaving questions unanswered, and adapting to changing writing speed are strategies that can help manage time effectively. Starting strong can leave a positive impression on the examiner and work in your favor.