Knowledge of political science is instrumental in preparing for UPSC as it provides insights into governance structures, policy analysis, and political theories. Understanding fundamental concepts like statecraft, public administration, and international relations enables aspirants to critically evaluate current events and their implications. This knowledge helps candidates articulate informed opinions during the interview and answer relevant questions in the written exams. Furthermore, political science equips aspirants with analytical skills necessary for effective problem-solving in civil services, reinforcing their capacity to address public issues.