For appearing in the RPF Sub Inspectors Constables Examination conducted by the Central Selection Board, Candidates can apply through the application forms published in the daily Newspapers or Employment News.
Respective RRB (Railway Recruitment Board) advertises vacancies in Employment News (a Government of India publication), and also on the website of Indian Railways.
Application in the prescribed format along with other enclosures must be sent to the Chief Security Commissioner/RPF of the specified Zonal Railways.
The applications received go through a primary screening. Eligible candidates are called for a written exam. The call letters are sent out a month in advance of the date of the examination.