People get into contracts with each other to uphold discipline between them. In a non-disclosure agreement, both parties agreed through the contract not to disclose the terms and conditions to third parties, and in a standard agreement, they expected the other party to uphold their end of the bargain, such as in a rent agreement, whereas both parties wanted the other party to honor their end of the bargain. However, in the event of a contract breach, the parties may send a legal notice (https://www.edrafter.in/legal-notice-for-breach-of-contract/)