Board tenure rules fix member terms, continuation in office, casual vacancy appointments, and government pleasure control. The term of office of the Chairperson and members of the Board is fixed at three years from the date of appointment or nomination, as applicable. On expiry of that term, the Chairperson or member continues in office until a successor is appointed or nominated. An independent member appointed to fill a casual vacancy serves for the remaining period of the original term, or until a regular incumbent assumes office. Official members hold office until replaced by other official members of the same category. All members remain subject to the pleasure of the Central Government.