Ind. R. App. P. 48
As amended through April 3, 2024
When pertinent and significant authorities come to the attention of a party after the party's brief or Petition has been filed, or after oral argument but before decision, a party may promptly file with the Clerk a notice of those authorities setting forth the citations. There shall be a reference either to the page of the brief or to a point argued orally to which the citations pertain, with a parenthetical or a single sentence explaining the authority.
Ind. R. App. P. 48