As per Evidence Act

The Right to Information Act, 2005 is a general provision which cannot override specific provisions relating to confidentiality in earlier legislation in accordance with the principle that where there are general words in a later statute it cannot be held that the earlier statutes are repealed altered or discarded.

Subhash Chandra Tyagi v. CBSE

The right to information was available in its rudimentary form in Section 76 of Indian Evidence Act, 1875:

Section 76 says:

Every public officer having the custody of a public document, which any person has a right to inspect, shall give that person on demand a copy of it on payment of the legal fees therefore, together with a certificate written at the foot of such copy that it is a true copy of such document or part thereof, as the case may be, and such certificate shall be dated and subscribed by such officer with his name and his official title, and shall be sealed, whenever such officer is authorized by law to make use of a seal; and such copies so certified shall be called certified copies.

Section 74 of Evidence Act, gave list of "public documents": "

(1) The following documents are public documents: (i) of the sovereign authority, (ii) of official bodies and tribunals, and (iii) of public officers, legislative, judicial and executive, of any part of India or of the Commonwealth, or of a foreign country; (2) public records kept in India or private documents."

”CIC/SA/A/2016/001451 decided on 21 July 2016