To effectively structure answers in the UPSC Mains, candidates should begin with a clear introduction that outlines the main argument or perspective. Following this, the body should develop points systematically, using subheadings if necessary to enhance readability. It's essential to incorporate relevant examples and case studies to strengthen arguments. Concluding with a succinct summary underscores the main points. Ensuring clarity and coherence throughout helps convey ideas effectively, crucial for a high-scoring response in the examination.