The main difference between assignment and license is that the owner retains ownership of the intellectual property when he grants a license for the same thing, while an intellectual property owner, when transferring a right or set of rights to another person, loses those rights himself. As an assignment, you transfer all interest in the copyright itself, while a license only gives permission to do something and not ownership of the copyright. As a general rule, the difficulty arises when the question arises before the courts as to whether a partial assignment or an exclusive licence of rights has been granted. `1. In determining whether a document is an assignment or merely a licence, account shall be taken of the content and not of the form of the words used. Prior to the use of this document, the original contract is consulted to ensure that an assignment is not prohibited and that all necessary authorizations have been obtained by the other party to the original contract, known as the debtor. Once this is done, the document can be used. The agreement contains important information such as the identity of all parties to the agreement, the expiry date (if any) of the original contract, whether the original contract requires the debtor`s agreement before rights are assigned, and, if so, the form of consent received by the Zdnessteller and when and which state laws govern the interpretation of the agreement. An assignment agreement must comply with the Indian Contract Act 1872 and, if necessary, be properly stamped in accordance with the provisions of the Indian Stamp Act 1899. .