Candidates are expected to have robust knowledge of national security issues for UPSC, as these are integral to India's strategic interests and governance. Key aspects include understanding threats such as terrorism, cyber security, and territorial integrity issues. Being informed about defense policies, military structures, and international relations under the national security umbrella is essential. Moreover, current events related to national security should be closely monitored, as they often feature in examinations. A comprehensive grasp of these issues ensures that future civil servants are prepared to address complex challenges effectively and make informed decisions.