Candidates can improve their writing skills for the UPSC Mains examination by practicing *structured essay writing* and summarizing articles or current affairs comprehensively. Regularly writing on diverse topics helps in developing an organized thought process and ensuring clarity of expression. Joining study groups or participating in writing workshops can provide peer feedback, enhancing writing techniques. Practicing past examination papers also familiarizes candidates with the expected formats and time constraints, ultimately refining their writing under exam-like conditions.