The key components of a well-structured answer in UPSC Mains include clarity, coherence, and logical flow. An effective introduction that defines the topic sets the stage, followed by well-organized body paragraphs that contain evidence and examples. Each paragraph should transition smoothly to maintain coherence throughout. Aspirants should also include a concise conclusion that summarizes key points or presents recommendations. Time management during the examination is crucial, ensuring aspirants allocate sufficient time for planning, writing, and reviewing their answers to enhance overall comprehensiveness and clarity.