The best approach to handle subjective questions in UPSC Mains is to focus on structured responses that clearly articulate arguments. Candidates should start with a concise introduction, followed by well-organized body paragraphs that present evidence and examples supporting their claims. Conclusively summarizing key points reinforces the argument. It's essential to remain relevant to the question and manage time efficiently during the exam. Practicing with previous years' subjective questions can enhance writing skills, helping aspirants develop a confident and articulate response.