The full form of CSAT is the Civil Services Aptitude Test. It was introduced in the year 2011 as a part of the UPSC Civil Services Exam (Preliminary) to test the analytical skills, reasoning ability and aptitude of IAS aspirants.
UPSC PRELIMS SYLLABUS
Comprehension
Data Interpretation
General Mental Ability
Decision Making & Problem Solving
Logical Reasoning & analytical ability
Interpersonal skills including communication skills