Simulators or mock interviews play a crucial role in preparing candidates for real scenarios by providing a structured environment to practice responses and refine communication skills. These simulations help candidates familiarize themselves with the actual interview setting, reducing anxiety and improving confidence. They offer immediate feedback, allowing candidates to identify strengths and areas for improvement. Furthermore, mock interviews can simulate unexpected questions and diverse question styles, enhancing adaptability. Overall, this preparation builds a solid foundation for effective performance during the actual UPSC interview.