Articles 315 to 323 in Part XIV of the Constitution of India provides for the establishment of Public Service Commission for the Union and a Public Service Commission for each State. The same set of Articles (i.e., 315 to 323 in Part XIV) of the Constitution also deal with the composition, appointment and removal of members,power and functions and independence of a Public Service Commission. Union Public Service Commission to conduct examinations for recruitment to all India services and higher Central services and to advise the President on disciplinary matters. State Public Service Commission in every state to conduct examinations for recruitment to state services and to advise the governor on disciplinary matters.
The Civil Services Examination (CSE) is a nationwide competitive examination in India conducted by the Union Public Service Commission for recruitment to various Civil Services of the Government of India, including the Indian Administrative Service (IAS), Indian Foreign Service (IFS), and Indian Police Service (IPS). Also simply referred to as the UPSC examination, it is conducted in three phases – a preliminary examination consisting of two objective-type papers (General Studies Paper I and General Studies Paper II also popularly known as Civil Service Aptitude Test or CSAT), and a main examination consisting of nine papers of conventional (essay) type, in which two papers are qualifying and only marks of seven are counted followed by a personality test (interview).