Treaty enforcement is a major problem in India, as the judicial system can be slow and contested. [4] India ranks 163rd out of 191 countries surveyed by the World Bank on the simple application of a treaty. [5] Moreover, for a contract to be valid in the eyes of the law, it should not be explicitly invalidated, for example. B without consideration (section 25), agreement on marriage limitation (section 26), trade-limiting convention (section 27), agreements in criminal proceedings (section 28), a betting agreement (section 30), etc. Has entered into a contract with his friend B. One of the terms of the contract stipulates that B pays a sum of 10,000 rupees/- per A provided B commits the theft of a valuable artifact from the home of a third party, C. Under the 1872 Act, a valid oral agreement of value can be obtained in court. However, it is always difficult to prove the existence or exact terms of the agreement in the event of a dispute. The consideration or object of an agreement is legal, unless it is: « Displaystyle agreement-promised consideration. » Salmond: « A contract is an agreement that creates and defines an obligation between two or more persons by which rights are acquired by one or more acts or indulgences of others. » In addition, Section 92 of the Indian Evidence Act states that if the terms of such a contract, of this concession or other provision or legal shortening to the form of a document have been demonstrated in accordance with the last section, no evidence of agreement or verbal explanation is allowed, as between the parties to such an instrument or their representatives of interests, in order to contradict their conditions, supplement them, complete them or subtract them.

However, its condition (2) makes it an exception, if there is a separate oral agreement on each subject in which the document is silent and the conditions inconsistent, the oral agreement can be valid. In addition, it is not possible that, if there is a separate oral agreement that is a precondition for the cancellation of an obligation of such a contract, oral agreements can also be proven.