If a person (promiser) offers something to someone else (promise) and the person concerned accepts the proposal with an equivalent consideration, this obligation is called an agreement. If two or more people agree on the same thing in the same sense (i.e. consensus ad idem), this identity of the Spirit is an agreement. The following types of agreements are as follows: Thus, illegal agreements are always anniged from the outset When an agreement is enforceable by law, it becomes a contract. Example: A promises B to sell his laptop for Rs. 25,000 / – and B agrees to buy it for the amount mentioned. This is where „A“ and „B“ reached an agreement. If a proposal is accepted by the person to whom it is submitted with the necessary consideration, it is an agreement. According to section 2(e) of the Indian Contract Act of 1872, „any promise and series of promises which constitute the mutual quid pro quo is an agreement.“ To conclude an agreement, there must be two or more people/parties, there must be a proposal from one person/party and acceptance from the other person/party. The person making the proposal is called „promisor“ and the person accepting the proposal is called „promised“ The valid agreement is deemed valid if it is applicable in court….