The Indian Contract Act, 1872 defines the term “Contract” under its section 2 (h) as “An agreement enforceable by law”. In other words, we can say that a contract is anything that is an agreement and enforceable by the law of the land.

contract, in the simplest definition, a promise enforceable by law. The promise may be to do something or to refrain from doing something. The making of a contract requires the mutual assent of two or more persons, one of them ordinarily making an offer and another accepting

In simple terms, a contract means when two parties put into writing an agreement which contains certain obligations (promises) which are to be performed by such parties, and when such written agreement becomes enforceable by law, it becomes a Contract. Enforceable by law means when the agreement has acquired the force of law only for those who are a party to it and a violation of those obligations would attract legal action, including repudiation of the entire contract.

TYPES OF CONTRACT

Implied Contract

A Contract inferred by

• The conduct of person

• The circumstances of the case.

By implies contract means implied by law (i.e.) the law implied a contract through parties never intended.

According to sec 9 in so for as such proposed or acceptance is made otherwise than in words, the promise is said to be implied.

Example: A stops a taxi by waving his hand and takes his seat. There is an implied contract that A will pay the prescribed fare.

Quasi-contract

In such a types of contract, the rights and obligations arise not by an agreement but by operation of law.

Example: If Mr A leaves his goods at Mr B’s shop by mistake, then it is for Mr. B to return the goods or to compensate for the price.

E-contract

An E-contract is a contract made through the digital mode.

Example: Via Internet

Executed contract

In an executed contract both the parties have performed their promises under a contract.

Example: A contracts to buy a car from B by paying cash, B instantly delivers his car.

Executory contract

In a Executory contract both the parties are yet to perform their promises.

Example: A sells his car to B for Rs. 2 lakh. If A is still to deliver the car and B is yet to pay the price, it is an Eexecutory contract.

Partly Executed and partly executory contract

In a partly executed and partly executory contract, one party has already performed his promised and the other party has yet to execute his promise.

Example: Anuj sells his bike to Bibek. Though Anuj has delivered the bike, Bibek has yet to pay the price. For Anuj, it is an executed contract, whereas it is an executory contract on the part of Bibek since the price has yet to be paid.

Unilateral Contract

A unilateral contract is also known as a one-sided contract. It is a type of contract where only one party has to perform his promise.

Example: Anuj promises to pay Rs. 1000 to anyone who finds his lost cellphone. B finds and returns it to Anuj. From the time B found the cellphone, the contract came into existence. Now Anuj has to perform his promise, i.e. the payment of Rs. 1,000.

Bilateral contract

A Bilateral contract is one where the obligation or promise is outstanding on the part of both the parties. It is also known as a two-sided contract.

Example: Aj promises to sell his car to Bj for Rs. 1 lakh and agrees to deliver the car on the receipt of the payment by the end of the week. The contract is bilateral as both the parties have exchanged a promise to be performed within a stipulated time.

Valid contract

If the contract entered into by the parties and satisfies all the elements of a valid contract as per the act, it is said to be a valid contract.

Void contract

Section 2 (j) states as follows: “A contract which ceases to be enforceable by law becomes void when it ceases to be enforceable”. Thus a void contract is one which cannot be enforced by a court of law.

Example: Mr Aj agrees to write a book with a publisher. After few days, Aj dies in an accident. Here the contract becomes void due to the impossibility of performance of the contract.

It may be added by way of clarification here that when a contract is void, it is not a contract at all but for the purpose of identifying it, it has to be called a void contract.

Voidable contract

Section 2(i) defines that an agreement which is enforceable by law at the option of one or more parties but not at the option of the other or others is a voidable contract.

This infact means where one of the parties to the agreement is in a position or is legally entitled or authorized to avoid performing his part, then the agreement is treated and becomes voidable.

Such a right might arise from the fact that the contract may have been brought about by one of the parties by coercion,undue influence, fraud or misrepresentation and hence the other party has a right to treat it as a voidable contract.

Illegal contract

Illegal contract are those that are forbidden by law. All illegal contracts are hence void also. Because of the illegality of their nature they cannot be enforced by any court of law.

In fact, even associated contracts cannot be enforced. Contracts which are opposed to public policy or immoral are illegal. Similarly contracts to commit a crime like supari contracts are illegal contracts.

Unenforceable contract

A type of contract which satisfies all the requirements of the contract but has technical defects is called an unenforceable contract.

A contract is said to have a technical defect when it does not fulfil the legal formalities required by some other act. When such legal formalities are compiled with, later on, the act becomes enforceable.

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Difference Between Void and Voidable Contract

Basis	Void Contract	Voidable Contract
Nature	Valid when made but subsequently becomes unenforceable.	It remains as voidable until cancelled by the party
Performance	Party cannot demand the performance of contract.	If aggrieved party does not cancel it within a reason-able time, performance can be demanded.
Damages	Party cannot claim damages.	Party can demand damages in certain cases.
Right or Remedy	No legal remedy is available for the void contract.	Aggrieved party has a remedy to cancel the contract.
Definition	It means contract which ceases to be enforceable.	It means an agreement enforceable by law, by one or more parties.
Reason	Contract becomes void due to change in law or circumstances.	If consent is not obtained freely then it is regarded as a voidable contract.