Indiana Code Title 34. Civil Law and Procedure § 34-15-4-3

(1) it appears at the trial of the action that:

(2) a full and fair retraction of a factual statement alleged to be false and defamatory was published in a regular issue of the newspaper or transmitted to its members or subscribers by the news service:

after the mistake or misapprehension was brought to the knowledge of the publisher or bureau chief;  and

(3) the retraction was published in as conspicuous a place and type as the original item appeared in the newspaper or was transmitted by a news service to all members or subscribers to whom the original item was transmitted.