To improve answer writing skills for the UPSC Mains, candidates should focus on practicing structured responses. Regularly writing answers within a timed format helps in managing time effectively during the exam. Familiarizing oneself with the examination format and expectations is crucial; understanding how to present information clearly and concisely can enhance scores. Utilizing bullet points, subheadings, and coherent paragraphs will aid clarity. Feedback from mentors or peer reviews can provide insights on areas for improvement. Moreover, reading well-structured answers from previous toppers can also guide effective writing styles and techniques suitable for the exam.