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Law Forum India

Indian Contract Act 1872 - Comprehensive Notes

Detailed study notes on the Indian Contract Act, 1872, covering formation of contracts, essential elements, void and voidable agreements, performance and discharge, breach and remedies, special contracts including indemnity, guarantee, bailment, pledge, and agency.

Last updated: 28 February 2026
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Nature of Contract & Essential Elements

Disclaimer: These notes are original educational summaries and not a substitute for prescribed textbooks or the bare text of the Indian Contract Act, 1872.

Definition and Nature

A "contract" is defined in Section 2(h) of the Indian Contract Act, 1872, as "an agreement enforceable by law." An "agreement" is defined in Section 2(e) as "every promise and every set of promises forming the consideration for each other." A "promise" under Section 2(b) arises when a person to whom a proposal is made signifies his assent thereto - the proposal becomes a promise. Thus, the formula is: Agreement = Offer + Acceptance, and Contract = Agreement + Enforceability at law.

Not all agreements are contracts. Only those agreements that satisfy the requirements of Section 10 are contracts. Social agreements (e.g., a dinner invitation) and agreements contrary to public policy are not enforceable contracts.

Essential Elements of a Valid Contract (Section 10)

Section 10 provides: "All agreements are contracts if they are made by the free consent of parties competent to contract, for a lawful consideration and with a lawful object, and are not hereby expressly declared to be void." From this and related provisions, the essential elements are:

1. Offer and Acceptance: There must be a lawful offer by one party and a lawful acceptance of that offer by another. The offer must be definite, communicated to the offeree, and must not be a mere invitation to treat. Acceptance must be unconditional, absolute, communicated to the offeror, and made while the offer subsists.

2. Intention to Create Legal Relations: Though the Act does not expressly state this requirement, courts have implied it. In Balfour v. Balfour (1919, English law, applied in India), it was held that social and domestic agreements do not create legal relations. In commercial transactions, the intention is presumed unless expressly negatived.

3. Lawful Consideration: Consideration is the price for which the promise is bought. It must be lawful, real, and not illusory. Past consideration is valid in India (unlike English law). Consideration must move at the desire of the promisor and may move from the promisee or any other person.

4. Capacity to Contract: The parties must be competent to contract. Under Section 11, persons of unsound mind, minors, and persons disqualified by law cannot enter into valid contracts.

5. Free Consent: Consent is said to be free when it is not caused by coercion, undue influence, fraud, misrepresentation, or mistake (Sections 14-22).

6. Lawful Object: The object of the contract must not be illegal, immoral, or against public policy (Section 23).

7. Not Expressly Declared Void: The agreement must not be one that the Act expressly declares void, such as agreements in restraint of trade (Section 27), agreements in restraint of legal proceedings (Section 28), or agreements by way of wager (Section 30).

8. Certainty: The terms of the agreement must be certain and not vague (Section 29). If the meaning of the agreement is not ascertainable, it is void.

9. Possibility of Performance: The agreement must be capable of performance. An agreement to do an impossible act is void ab initio (Section 56).

Classification of Contracts

Contracts may be classified based on:

  • Validity: Valid, void, voidable, illegal, unenforceable
  • Formation: Express, implied, quasi-contracts
  • Performance: Executed (both parties performed), executory (one or both yet to perform), unilateral (one party has performed, other's obligation remains), bilateral (obligations remain on both sides)

Void and Voidable Agreements: A void agreement (Section 2(g)) has no legal effect from the beginning. A voidable contract (Section 2(i)) is one that can be repudiated at the option of one of the parties (typically the party whose consent was not free). Until the aggrieved party exercises the option to avoid the contract, it remains valid and binding.

Key Distinction: Agreement vs. Contract

Every contract is an agreement, but every agreement is not a contract. An agreement becomes a contract when it is enforceable by law. To be enforceable, it must satisfy all the essential elements outlined above. An agreement that fails to satisfy even one element is either void or unenforceable.