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Meaning, Definition and Essentials of a Valid Contract under the Indian Contract Act, 1872

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By Herus
• September 29, 2026 • 15 min read

A contract is one of the most fundamental concepts in Indian contract law. Commercial transactions, employment arrangements, sale of goods, service agreements, leases and numerous other legal relationships are governed by principles relating to contracts. The Indian Contract Act, 1872 provides the statutory framework for determining when an agreement becomes legally enforceable and what consequences follow when contractual obligations are not performed.

The expression “contract” is specifically defined in Section 2(h) of the Indian Contract Act, 1872, while Section 10 identifies the conditions that an agreement must satisfy to become a contract. These provisions must be read together with the rules concerning proposal and acceptance, competency of parties, consent, consideration, lawful object, void agreements and performance.

Understanding the distinction between an agreement and a contract is therefore essential because every contract is an agreement, but every agreement does not necessarily acquire the status of a contract.

Meaning and Definition of Contract under Section 2(h)

Section 2(h) of the Indian Contract Act, 1872 defines a contract as an agreement enforceable by law. The statutory definition establishes two essential components: there must first be an agreement, and that agreement must be legally enforceable.

The Act defines an agreement under Section 2(e) as every promise and every set of promises forming the consideration for each other. A promise, in turn, arises when a proposal is accepted under Section 2(b). Consequently, the statutory structure moves progressively from proposal to acceptance, from acceptance to promise, from promise to agreement and, where the agreement is enforceable by law, finally to a contract.

The phrase “enforceable by law” is particularly important. An arrangement may involve mutual promises between parties but still fail to constitute a contract if the law denies it enforceability. Agreements involving prohibited objects, certain agreements with minors and agreements expressly declared void by the Act provide examples of situations in which an apparent agreement may not result in a legally enforceable contract.

Agreement and Contract: What Is the Difference?

An agreement is a broader concept than a contract. Section 2(e) recognises an agreement as a promise or a set of promises constituting consideration for each other, whereas Section 2(h) adds the requirement of legal enforceability to arrive at the definition of a contract.

The distinction can be understood through a simple example. Suppose A promises to give B a gift without any consideration and the arrangement does not fall within any statutory exception. Although the parties may have reached an understanding, the arrangement does not ordinarily create a contract enforceable under the Act. By contrast, where A agrees to sell a laptop to B for an agreed price and the statutory requirements are satisfied, the resulting agreement can constitute a contract.

Thus, agreement describes the underlying understanding between parties, while contract describes an agreement that the law recognises as enforceable.

Essentials of a Valid Contract under Section 10

Section 10 provides the central statutory test for determining whether an agreement qualifies as a contract. It states that agreements become contracts when they are made by the free consent of parties competent to contract, for lawful consideration and with a lawful object, and are not expressly declared void by the Act. The provision also preserves other laws that may require particular contracts to be made in writing, in the presence of witnesses or through registration.

These requirements operate alongside other provisions of the Act. Therefore, Section 10 should not be treated as an isolated checklist; the validity of an agreement may depend on provisions dealing with proposal, acceptance, competency, consent, consideration, legality and performance.

1. There Must Be an Agreement

The first requirement is the existence of an agreement. Since a contract is an agreement enforceable by law, there cannot be a contract unless the parties have reached an agreement in the first place.

The formation process generally begins with a proposal. Under Section 2(a), a proposal arises when one person signifies willingness to do or abstain from doing something with a view to obtaining the assent of another. Once the proposal is accepted, it becomes a promise under Section 2(b).

Acceptance must also satisfy the statutory requirements. Section 7 requires acceptance to be absolute and unqualified and to be expressed in the prescribed or reasonable manner, subject to the rules contained in the Act. Therefore, a mere exchange of discussions or negotiations does not necessarily establish a concluded agreement. The communications between the parties must demonstrate the requisite consensus contemplated by contract law.

2. The Parties Must Be Competent to Contract

Section 11 provides that a person is competent to contract if they have attained the age of majority, are of sound mind and are not disqualified from contracting by any law applicable to them. Section 12 further explains the requirement of soundness of mind by focusing on the person’s capacity to understand the contract and form a rational judgment regarding its effect on their interests at the time of contracting.

The age of majority is generally eighteen years under the Majority Act, 1875.

Agreement with a Minor

The law relating to minors is particularly significant in contract formation. In Mohori Bibee v Dharmodas Ghose, the Privy Council held that an agreement entered into by a minor is void and cannot ordinarily be enforced as a contractual obligation against the minor. The decision is important because competency is not merely a procedural requirement. The absence of contractual capacity can affect the legal character of the transaction itself.

Consent concerns whether the parties have agreed upon the same thing in the same sense. Section 13 defines consent in these terms, while Section 14 provides that consent is free when it is not caused by coercion, undue influence, fraud, misrepresentation or mistake, subject to the statutory rules governing these circumstances.

The requirement protects the voluntary nature of contractual decision-making. A party may appear to have agreed to a transaction, but the legal consequences can change where the consent was obtained through one of the factors recognised by the Act. The Act separately addresses coercion, undue influence, fraud and misrepresentation and prescribes consequences for agreements affected by these circumstances. Accordingly, the question of free consent often requires examination of the circumstances in which the agreement was formed rather than merely the wording of the agreement.

4. There Must Be Consideration

Consideration represents the value or legal detriment exchanged in connection with a promise. Section 2(d) defines consideration in terms of an act, abstinence or promise done, abstained from or undertaken at the desire of the promisor. The general rule under Indian contract law is that an agreement made without consideration is void. However, Section 25 recognises specific statutory exceptions, including certain promises made on account of natural love and affection, promises to compensate for past voluntary acts or acts the promisor was legally bound to perform, and certain written and signed promises to pay debts barred by limitation. Consequently, the absence of consideration cannot always be analysed mechanically. The nature of the transaction and the statutory exceptions must also be examined.

5. The Consideration and Object Must Be Lawful

Section 23 requires both the consideration and object of an agreement to be lawful. The provision identifies circumstances in which consideration or object becomes unlawful, including where it is forbidden by law, defeats the provisions of law, is fraudulent, involves injury to another person or property, or is regarded by the court as immoral or opposed to public policy. This requirement places substantive limits on freedom of contract. Parties may generally determine the terms of their transactions, but private agreement cannot be used to give legal effect to an arrangement that the law prohibits or regards as legally impermissible. The legality of the object must therefore be assessed independently of whether both parties have voluntarily agreed to the transaction.

6. The Agreement Must Not Be Expressly Declared Void

Certain agreements are specifically declared void by the Indian Contract Act. These include, subject to their respective statutory conditions, agreements in restraint of marriage, agreements in restraint of trade, agreements in restraint of legal proceedings, agreements whose meaning is uncertain, wagering agreements and agreements falling within other provisions that expressly deny enforceability. This requirement is distinct from the question of unlawful consideration or object. An agreement can fail because the law expressly declares that particular category of agreement void, even where the parties have otherwise reached an understanding.

7. The Terms of the Agreement Must Be Certain

Section 29 addresses agreements whose meaning is uncertain or incapable of being made certain. Contractual obligations must therefore be expressed with sufficient clarity to enable the parties and, where necessary, a court to determine what each party is required to do. For example, an agreement to sell “a large quantity of oil” without any mechanism by which the quantity can be determined may raise an issue of uncertainty. On the other hand, an agreement containing a method or objective standard through which the relevant term can be ascertained may avoid this problem. Certainty is consequently concerned with whether the obligations created by the agreement can be legally identified and enforced.

8. The Agreement Must Be Capable of Performance

An agreement cannot ordinarily create an enforceable obligation where the promised act is legally or physically impossible. Section 56 addresses agreements to do acts that are impossible in themselves and also deals with contracts that subsequently become impossible or unlawful in the circumstances contemplated by the provision. This principle is particularly relevant where circumstances change after formation. A contract that was capable of performance when entered into may subsequently be affected by an event that makes performance impossible or unlawful. The legal consequences must then be determined according to the statutory rules governing impossibility and frustration.

Section 10 itself recognises that some transactions may be subject to additional legal requirements relating to writing, witnesses or registration. Therefore, satisfaction of the general requirements of Section 10 does not necessarily mean that every transaction can be enforced without complying with formal requirements imposed by another applicable law. The nature of the transaction must consequently be examined to determine whether any separate legislation prescribes a particular form or procedure for creating or enforcing the obligation.

The requirement of an intention to create legal relations is often discussed alongside the essentials of a contract, particularly because it forms an important part of common-law contract analysis.

The classic English decision of Balfour v Balfour illustrates the distinction between domestic arrangements and agreements intended to create legal obligations. The case is useful as a comparative authority, although it is not an Indian statutory provision and should not be treated as if it were expressly contained in Section 10 of the Indian Contract Act.

In Indian contract law, the statutory inquiry principally proceeds through the requirements contained in the Contract Act and other applicable laws. The surrounding circumstances of an arrangement may nevertheless be relevant when determining whether the parties intended to enter into an enforceable legal relationship.

Are Written Contracts Necessary in India?

A contract does not invariably have to be contained in a written document. The Indian Contract Act recognises the formation of agreements through proposal, acceptance and promises, and Section 10 expressly refers to other laws that may impose additional formal requirements.

Accordingly, whether writing is necessary depends upon the nature of the transaction and the applicable legislation. Even where a written instrument is not legally mandatory, recording the terms in writing can provide evidence of the parties’ obligations and reduce disputes concerning what was agreed.

Certain transactions may additionally require registration, attestation or other formalities under applicable legislation. Such requirements should therefore be examined separately rather than assuming that the general rules of the Contract Act determine every formal requirement.

Validity of Electronic Contracts

Modern commercial transactions frequently take place through electronic communications, websites, applications and digital platforms. The use of electronic means does not by itself prevent an agreement from acquiring legal enforceability.

Section 10A of the Information Technology Act, 2000 provides that a contract is not considered unenforceable merely because proposals, acceptances, revocations or other communications relating to the formation of the contract are expressed electronically.

The important point is that electronic form addresses the medium through which the transaction is concluded. The substantive requirements governing formation and enforceability continue to apply. Thus, merely clicking an “I Agree” button or exchanging emails does not automatically make every electronic arrangement a valid contract; the underlying legal requirements must still be satisfied.

Example of a Valid Contract

Suppose A agrees to sell a specific laptop to B for ₹50,000. B accepts the proposal, and both parties are legally competent. Their consent is voluntary, the consideration is lawful, the object of the transaction is lawful, and the agreement is not one of the categories expressly declared void by the Contract Act.

If the transaction also satisfies any formal requirements imposed by applicable law, the agreement can constitute a valid and enforceable contract.

The example demonstrates why contractual validity cannot be determined merely by asking whether the parties have exchanged promises. The circumstances surrounding formation and the legal character of the transaction must also be examined.

Void and Voidable Agreements

A void agreement is one that the law does not enforce. Section 2(g) expressly defines a void agreement as an agreement not enforceable by law. A contract may also subsequently become void in circumstances recognised by the Act.

A voidable contract, on the other hand, is defined under Section 2(i) as a contract enforceable at the option of one or more parties, but not at the option of the other party or parties.

The distinction is important because the legal consequence is different. A void arrangement lacks enforceability, whereas a voidable contract continues to have legal effect unless and until the party entitled to avoid it exercises that right in accordance with law.

Common Issues in Applying Section 2(h) and Section 10

A frequent error is to treat the definition in Section 2(h) as a complete test for determining validity. Section 2(h) tells us what a contract is, but Section 10 and the surrounding provisions determine whether an agreement obtains that legal character.

Another common error is to treat all deficiencies as having the same consequence. The Act distinguishes between agreements that are void, contracts that are voidable, agreements affected by unlawful consideration or object, and transactions affected by other statutory requirements. The precise provision applicable to the facts therefore matters.

It is also important to distinguish formation from enforceability. An agreement may appear to have been concluded between the parties, but a separate legal rule may prevent it from being enforced as a contract.

Frequently Asked Questions

What is a contract under Section 2(h) of the Indian Contract Act, 1872?

Section 2(h) defines a contract as an agreement enforceable by law. The definition therefore connects the existence of an agreement with its legal enforceability.

What is the difference between an agreement and a contract?

An agreement is defined under Section 2(e), whereas a contract under Section 2(h) is an agreement that is enforceable by law. Therefore, the element of legal enforceability distinguishes a contract from an agreement that does not possess that character.

What does Section 10 of the Indian Contract Act provide?

Section 10 provides that agreements become contracts when they are made by competent parties with free consent, lawful consideration and a lawful object and are not expressly declared void, subject to other applicable legal requirements.

Can a minor enter into a valid contract?

The general rule is that a person must have attained majority to be competent to contract under Section 11. The law relating to agreements entered into by minors was authoritatively considered in Mohori Bibee v Dharmodas Ghose.

Does every contract have to be in writing?

No. A written instrument is not universally required for every contract. However, particular transactions may be subject to separate statutory requirements concerning writing, witnesses or registration.

Are online agreements legally recognised in India?

Electronic contracting is legally recognised. Section 10A of the Information Technology Act provides that an electronic contract cannot be treated as unenforceable merely because electronic means were used in its formation.

Conclusion

The statutory definition of a contract under Section 2(h) is concise: a contract is an agreement enforceable by law. Determining whether a particular agreement reaches that stage, however, requires examination of several connected provisions of the Indian Contract Act, 1872.

Section 10 provides the principal framework by referring to free consent, competency, lawful consideration, lawful object and the absence of an express declaration of voidness. Other provisions then address particular issues such as acceptance, capacity, consent, consideration, legality, uncertainty and impossibility.

For students studying contract law, the most useful approach is therefore to read Section 2(h) together with Sections 2(e), 2(b), 7, 10–14, 23, 25 and the provisions dealing with void agreements and performance, rather than treating the definition of contract as an isolated rule.

References

  1. The Indian Contract Act, 1872, India Code, Ministry of Law and Justice.
  2. The Majority Act, 1875, India Code, Ministry of Law and Justice.
  3. The Information Technology Act, 2000, India Code, Ministry of Law and Justice.
  4. Mohori Bibee v. Dharmodas Ghose, Privy Council.
  5. Balfour v. Balfour, English contract law authority concerning intention to create legal relations.

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