The Civil Services Aptitude Test (CSAT) assesses several key skills such as comprehension, logical reasoning, analytical ability, and decision-making. It evaluates candidates' proficiency in understanding complex texts and their capacity to interpret information accurately. Additionally, mathematical skills related to basic arithmetic, data interpretation, and numerical ability are tested. This multifaceted evaluation ensures that candidates possess the necessary skill set for problem-solving and effective decision-making in public administration. Success in CSAT is crucial as it serves as a qualifying paper in the UPSC examination process.