The CSAT Full Form stands for Civil Services Aptitude Test, also known as General Studies-II in the UPSC Prelims exam. The UPSC Prelims CSAT is the second paper. UPSC CSAT exam is a qualifying paper in the Prelims examination, and candidates must score at least 33% or 66 marks out of 200 to qualify.
Those who do not qualify for CSAT cannot take the UPSC Prelims exam.
This paper is added by the commission to test the analytical, decision-making, logical, and aptitude abilities of the candidates.