The Civil Services Examination has a three stage competitive selection process. At stage one, there is an objective type examination called the preliminary exam. This is a qualifying examination. It consists of a General Studies paper and an aptitude test. Only the candidates who pass this can appear for the "Main Examination" which consists of nine papers. Each candidate has to select an optional subject (one paper) and to take six General Studies papers, an Essay, an English language paper and a regional language paper. This is followed by an interview.
After selection for the IPS, candidates are allocated to a cadre. There is one cadre in each Indian state, with the exception of three joint cadres: Assam-Meghalaya, Manipur-Tripura, and Arunachal Pradesh-Goa-Mizoram-Union Territories (AGMUT). Two-thirds of the strength of every cadre is filled directly by IPS officers and the remaining are promoted from the respective states cadre officers.
State Police Services (India) Indian Police Service and Law enforcement in India
The State Police Services (Devanāgarī: राज्य पुलिस सेवा, Rājya Polīce Sevā), simply known as State Police or SPS are police services under the control of respective state governments of the States and territories of India.
The candidates selected for the SPS are usually posted as Deputy Superintendent of Police or Assistant Commissioner of Police once their probationary period ends. On prescribed satisfactory service in the SPS, the officers are nominated to the Indian Police Service.[1]
The recruitment to this service is done by the respective State Governments, usually through