To enhance answer writing skills for the UPSC Mains, candidates should focus on structuring their responses effectively with clear introductions, main points, and conclusions. Practicing time management during writing exercises will help develop speed and efficiency. Candidates should incorporate relevant facts, examples, and case studies to substantiate their arguments, which enriches their answers. Regular feedback from mentors or peer reviews can identify weaknesses and areas for improvement. Additionally, engaging in answer writing practice under exam-like conditions assists in adapting to the pressure of the actual exam, ultimately boosting performance.