Simulations play a crucial role in helping candidates prepare for UPSC interviews. They provide a platform to practice real-life scenarios, enhancing not only confidence but also critical thinking and response formulation under pressure. Mock interviews, often conducted by experienced professionals, allow aspirants to receive constructive feedback regarding body language, articulation, and content accuracy. This practice helps candidates refine their answers, address potential shortcomings, and become familiar with the interview format, ultimately improving their chances of success.