To effectively prepare for case study analysis in interviews, candidates should follow a structured approach. First, familiarize yourself with common scenarios in governance and public administration. Analyze real-life case studies to understand problem-solving methodologies. Developing a framework for addressing such cases is also essential; identify the problem, evaluate options, and recommend solutions. Practicing articulation of thoughts clearly and concisely will also be beneficial. Furthermore, aspirants can engage in mock interviews and discussions to refine their analytical and communication skills under pressure, which enhances confidence and performance.