Section 499
Defamation
Whoever by words either spoken or intended to be read, or by signs or by visible representations, makes or publishes any imputation concerning any person intending to harm, or knowing or having reason to believe that such imputation will harm, the reputation of such person, is said, except in the cases hereinafter excepted, to defame that person.
Simply Explained
If someone makes or publishes a statement (spoken, written, or visual) intending to harm or knowing it will harm another person's reputation, they are committing defamation.