Copyright Act, 1957
18. Indexes –
(1) There shall be kept at the Copyright Office the following indexes for each part of the Register of Copyrights, namely -
(i) A general Author Index;
(ii) A general Title Index;
(iii) An Author Index of works in each language; and
(iv) A Title Index of works in each language.
(2) Every index shall be arranged alphabetically in the form of cards.