Candidates can gauge their readiness for UPSC exams through self-testing by employing various methods such as mock tests and practice questions. Regularly assessing their knowledge and skills helps identify strengths and weaknesses, allowing for targeted improvement. Self-testing promotes active recall, a technique that enhances memory retention and understanding of concepts. Additionally, timing these tests simulates real examination conditions, providing insights into time management and pressure handling. By analyzing performance, candidates develop a reflective practice, consolidating learning and boosting confidence for the actual exam scenario.