The UPSC Civil Services Examination process consists of three stages: the Preliminary Examination, the Main Examination, and the Interview (Personality Test). Each stage is designed to evaluate different competencies required for civil services. The Preliminary Examination serves as a screening test, while the Main Examination assesses candidates' comprehensive knowledge and analytical abilities through written papers. Ultimately, the Interview evaluates the candidates' personality traits, communication skills, and suitability for public service roles. Together, these stages help identify the most qualified individuals for civil service positions.