Mock tests play a crucial role in UPSC Civil Services preparation by simulating exam conditions, helping candidates familiarize themselves with the format, timing, and pressure of the actual examination. These tests allow aspirants to assess their knowledge, identify areas needing improvement, and track progress over time. Additionally, taking mock tests enhances time management skills, which are essential for success in the UPSC exams. Furthermore, analyzing mock test results can inform study strategies, enabling candidates to focus on weaker subjects or concepts before the actual examination.