**How does one select an optional subject for the UPSC Mains effectively?**

Selecting an optional subject for UPSC Mains is a crucial step in the preparation journey. Candidates should consider their interests and academic background to ensure motivation throughout the study period. Additionally, evaluating the syllabus for complexity and overlap with General Studies subjects can reduce preparation time. Access to resources and study materials is essential, so candidates should assess availability. Consulting with mentors or successful aspirants can provide insights into the subject’s scoring potential and trends in recent exams. Ultimately, choosing a subject that aligns with one’s passion and strengths increases the likelihood of success.