Writing practice for UPSC mains enhances critical thinking, clarity of expression, and improved time management. It helps candidates articulate their ideas effectively, fostering a structured approach to developing arguments. Additionally, it bolsters grammar and vocabulary, enabling aspirants to convey complex information succinctly. Regular writing also helps in refining the analytical and presentation skills essential for writing essays and answers that capture the examiners' attention. A strong focus on coherence and relevance is vital, helping candidates differentiate their responses in a competitive environment.