Characteristics of a successful response to the public administration section in UPSC include clarity, coherence, critical analysis, and practical relevance. Responses should demonstrate a comprehensive understanding of public policies and their implications, backed by well-structured arguments. Candidates should communicate their ideas clearly, free from ambiguity, and ensure logical flow between points. Employing relevant case studies or examples enhances the practical relevance of their arguments. Additionally, demonstrating awareness of current trends and reforms in public administration reflects a candidate's depth of knowledge, ultimately contributing to a more compelling response.