Indiana Proof of Claim, Attachment A is a legal document that is completed and filed by a creditor in order to receive payment from the debtor. It is used in the state of Indiana when a debtor files for bankruptcy or reorganization and the creditor needs to make a claim against the debtor. The Attachment A form is used to provide information about the creditor, the claim, and any other pertinent information. There are two types of Indiana Proof of Claim, Attachment A: secured and unsecured. Secured attachments are used when the creditor has a lien on the debtor's property, while unsecured attachments are used when there is no lien. The form must be filled out completely and accurately in order for the claim to be accepted.