Article 321 — Power to extend functions of Public Service Commissions

321. Power to extend functions of Public Service Commissions.—An Act made by Parliament or, as the case may be, the Legislature of a State may provide for the exercise of additional functions by the Union Public Service Commission or the State Public Service Commission as respects the services of the Union or the State and also as respects the services of any local authority or other body corporate constituted by law or of any public institution.