Union Public Services Commission (UPSC) conducts the prestigious Civil Services Examination every year for the recruitments to various civil services of Government of India.

The Examination has a multi-staged pattern and comprises of three different stages viz. Priliminary Exam (CSAT), Mains and a Personality Test.
Each Stage vary in level of difficulty and other facts from one another.
Every aspirant needs to make clear to himself the concept of each stage of the examination.