The BPSC consists of the Commission and a Secretariat headed by the Chairman. While the Commission consists of the Chairman & Members, the Secretariat consists of a Secretary assisted by a Joint Secretary, Deputy secretaries, Assistant Secretaries and other related supporting staff. This is the main administrative setup of the commission.

There are other organs under the secretariat consisting of the Controllers of Examination, Chief Psychologist, Directors, Deputy Directors, Assistant Directors, Administrative Officers, Personal Officers and related other supporting staff who are engaged in assisting the commission in discharging their constitutional obligation.

There are 12 functional units under the Secretariat to assist the Commission in discharging their constitutional responsibilities. There is also a library and a research section. The research section prepares the Annual Report of the commission for submitting before the Hon'ble President. There is a computer section headed by a Senior System Analyst along with System Analyst, Programmer, Assistant Programmers and other related staff. The computer section performs a major role in processing the results of different examinations maintaining high standard of security and accuracy.