A promise is essentially an offer or proposal made by one person or institution to another. The agreement of the other leads to the acceptance of the offer; and reach an agreement. Each contracting party must be a « competent person » with the force of law. The parties may be individuals (« individuals ») or legal entities (« companies »). An agreement is reached if an « offer » is adopted. The parties must intend to be legally connected; and to be valid, the agreement must have both a correct « form » and a legitimate purpose. In England (and in jurisdictions using the principles of the English treaty), the parties must also exchange « counterparties » to create a « reciprocity of engagement, » as in Simpkins/Country.  In addition, section 92 of the Indian Evidence Act states that if the terms of such a contract, such subsidy or any other provision relating to the existence or reduction in the form of a statutory document have been demonstrated, no evidence of agreement or verbal explanation is permitted, such as between the parties to such an instrument or their representatives of interest. to contradict, vary, complete, complete or subtract their terms.
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. Written chords are all forms of chords that are reduced to writing, in a particular format. This is the series of promises and conditions of an agreement that is reduced on paper, in a simple composition of text, and is explicit. Valid written agreements have greater probative value in court because they are easier to read and understand. It also has a simpler and greater enforceable force in the courts or in litigation Not all agreements are necessarily contractual, since the parties generally have to be considered legally bound. A « gentlemen`s agreement » should not be legally applicable and « compulsory only in honour. »    This was founded by Delhi High Court in the case of Nanak Builders and Investors Pvt. Ltd. vs. Vinod Kumar Alag AIR 1991 Delhi 315, the court having decided that even an oral agreement can be a valid and enforceable contract.