Opting for a specialized optional subject in UPSC brings several benefits. It allows candidates to delve deeper into their area of interest, often resulting in better understanding and retention of concepts. Candidates with strong command over a specific subject can communicate their knowledge more effectively in exams, potentially leading to higher scores. Focusing on fewer subjects can streamline preparation efforts and reduce the overall workload, which is particularly beneficial in managing time efficiently during the intense study period. Ultimately, specialized subjects can give candidates a competitive edge in ranking.