To enhance the depth of answers in UPSC Mains, candidates should employ techniques such as critical analysis, structured layout, and relevant examples. Starting with a clear thesis statement establishes the response's direction. Utilizing a multidimensional approach by integrating different perspectives on the topic demonstrates depth of understanding. Incorporating case studies, real-world applications, and statistics supports arguments effectively. Moreover, maintaining clarity and coherence through logical flow of ideas is essential. Regular practice of answer writing, coupled with feedback, helps identify strengths and areas for improvement, enabling candidates to craft well-rounded responses.