Improving answer writing for the UPSC Mains requires several strategies. Firstly, candidates should practice crafting concise yet comprehensive responses, focusing on clarity and coherence. Structuring answers with an introduction, body, and conclusion helps in organizing thoughts systematically. Using relevant examples and data can enrich responses, making them more compelling. Furthermore, time management during the exam must be practiced, ensuring sufficient time to answer all questions. Lastly, frequent feedback from mentors or peers on answer quality can provide valuable insights for improvement.