Understanding public administration principles aids UPSC preparation by providing insights into governance structures, policy-making processes, and administrative reforms. Knowledge in these areas enhances a candidate's ability to analyze case studies and respond effectively to questions in the exam. Additionally, familiarity with administrative theories helps in understanding the functioning of the state and the roles of various public services, strengthening one's overall grasp of the Indian polity. Furthermore, integrating these principles into preparation encourages a holistic view, fostering critical thinking required for both the examination and future civil service roles.