It is a Constitutional Body under Article 315 of the Constitution of India.
The Bihar Public Service Commission initially began its functioning for the State of Bihar with its headquarters at Ranchi. The State Government decided to shift the headquarter to Patna on 1st March 1951.
The first Chairman of the Bihar Public Service Commission was Shri Rajandhari Sinha. Shri Radha Krishna Choudhary was the first Secretary to the Commission.