What does Competent Authority under the RTI Act, 2005 mean?

Section 2 (e) "competent authority" means— (i) the Speaker in the case of the House of the People or the Legislative Assembly of a State or a Union territory having such Assembly and the Chairman in the case of the Council of States or Legislative Council of a State; (ii) the Chief Justice of India in the case of the Supreme Court; (iii) the Chief Justice of the High Court in the case of a High Court; (iv) the President or the Governor, as the case may be, in the case of other authorities established or constituted by or under the Constitution; (v) the administrator appointed under article 239 of the Constitution.