Pars Contractus Law and Legal Definition

Pars contractus means part of a contract. When consent to the alterations or addition to the contract is communicated between the parties, such additions or alterations are binding upon the parties. Parties consenting to such alteration or change cannot afterwards move away from the consent. If they do so, such parties are subject to damages for breach of contract. The consent to alteration must be reduced into writing. Such agreement forms part of the original contract. The alteration becomes binding on the execution of writing. The parties can resile from it before the execution.