As per Section 2(h) of the RTI Act, ‘public authority’ means that any authority or body or institution of self-government established or constituted: 1. By or under the Constitution. 2. By any other law made by Parliament. 3. By any other law made by State Legislature. 4. By notification issued or order made by the appropriate Government.

The correct answer is C. 1, 2, 3 and 4.

Section 2(h) of the Right to Information Act, 2005 defines “public authority” as follows:

“public authority” means any authority or body or institution of self-government established or constituted-

(a) by or under the Constitution;

(b) by any other law made by Parliament;

(c) by any other law made by State Legislature;

(d) by notification issued or order made by the appropriate Government, and includes any-

(i) body owned, controlled or substantially financed by the Central Government or State Government;

(ii) non-Government organization substantially financed, directly or indirectly, by the Central Government or State Government or any other public authority; and

(iii) body or institution or organization, association or trust established by a notification issued or order made by the appropriate Government, and includes any person or body of persons or any organization or association or trust or any other institution established, constituted, nominated or recognized by or under any law for the time being in force.”

Therefore, the correct answer is C. 1, 2, 3 and 4.