Best practices for structuring answers in the UPSC exams revolve around clarity and coherence. Candidates should start with a concise introduction that lays out the main argument or stance on the question. Following this, a clear and logical body should encompass different aspects of the topic, utilizing headings or bullet points if necessary for better readability. Each point in the body should be backed by relevant facts or examples. Finally, a strong conclusion that summarizes the answer reinforces the main arguments. This structured approach enhances overall presentation and assessment success.