78  Indian Contract Act, 1872

78.1 Background and Scope

The Indian Contract Act, 1872 (ICA) is the foundational law of contract in India — enacted on 25 April 1872 and effective from 1 September 1872. It applies to all of India and codifies the general principles relating to formation, performance and discharge of contracts (kapoor2023?).

Originally the Act covered all aspects of contract law, but several portions have been carved out into separate statutes:

  • Sale of Goods Act 1930 — split from sections 76–123.
  • Indian Partnership Act 1932 — split from sections 239–266.

What remains in the ICA today is the general law of contract (Sections 1–75) and the law of special contracts — indemnity, guarantee, bailment, pledge, agency (Sections 124–238).

78.2 Definition of Contract

Section 2(h): “An agreement enforceable by law is a contract.”

That is: Contract = Agreement + Enforceability by law.

TipThree Building Blocks
Term Section Definition
Promise 2(b) Accepted proposal
Agreement 2(e) Every promise / set of promises forming consideration for each other
Contract 2(h) Agreement enforceable by law

So every contract is an agreement, but every agreement is not a contract.

78.3 Essentials of a Valid Contract

Section 10 lays out the essentials. A more elaborate list, drawn from various sections (kapoor2023?):

TipTen Essentials of a Valid Contract
Essential Section Working content
Offer and acceptance 2(a), 2(b) Lawful proposal accepted in proper manner
Intention to create legal relations Not social or domestic agreements
Lawful consideration 2(d), 23 Something in return that is lawful
Capacity of parties 11 Major, sound mind, not disqualified
Free consent 13–22 Not caused by coercion, undue influence, fraud, misrepresentation, mistake
Lawful object 23 Object not forbidden by law / immoral / against public policy
Not expressly declared void 24–30 Section 24–30 list void agreements
Certainty 29 Terms must be certain or capable of being made certain
Possibility of performance 56 Must be possible to perform
Legal formalities various Writing / registration where required

78.4 Classification of Contracts

TipClassifications of Contract
Basis Categories
By validity Valid, Void, Voidable, Illegal, Unenforceable
By formation Express, Implied, Quasi
By performance Executed, Executory; Unilateral, Bilateral
By nature Bilateral, Unilateral; Standard form
TipValidity Categories
Type Definition
Valid contract Satisfies all essentials
Void agreement No legal effect from the start (Sec. 2(g))
Voidable contract Valid until rescinded by aggrieved party (Sec. 2(i))
Illegal agreement Forbidden by law; collateral agreements also fail
Unenforceable contract Valid but cannot be enforced due to technical defect

78.5 Offer (Proposal) — Section 2(a)

An offer is “when one person signifies to another his willingness to do or to abstain from doing anything, with a view to obtaining the assent of that other to such act or abstinence”.

TipRules Regarding Offer
Rule Working content
Must be communicated An offer not communicated cannot be accepted
Must be definite Vague offer cannot be accepted
May be express or implied Words or conduct
May be specific or general To a particular person, or to the world (e.g. Carlill v. Carbolic Smoke Ball)
Must be made with intent to create legal relations Mere statement of price is not an offer
Lapses by Time, death, rejection, counter-offer, revocation, change of law

78.6 Acceptance — Section 2(b)

Acceptance is when “the person to whom the proposal is made signifies his assent thereto”. Rules:

  • Must be absolute and unqualified (Sec. 7).
  • Must be expressed in some usual and reasonable manner.
  • Must be communicated to the offeror.
  • Must be given within reasonable time.
  • Cannot precede the offer.
  • Mental acceptance is not enough.

The classic postal rule (Adams v. Lindsell, 1818): acceptance is complete when the letter is posted; revocation is effective only on receipt.

78.7 Consideration — Section 2(d)

Consideration — “something in return”. When at the desire of the promisor, the promisee or any other person has done or abstained from doing, or does or abstains from doing, or promises to do or abstain from doing, something — such act, abstinence or promise is the consideration.

TipRules of Consideration
Rule Working content
Must move at desire of promisor Not unilateral
May move from promisee or any other person Stranger may furnish (Chinnaya v. Ramayya)
May be past, present or future All recognised in Indian law
Must be real and lawful Not illegal, immoral, opposed to public policy
Need not be adequate Sec. 25 explanation 2 — adequacy not required, but inadequacy may be evidence of fraud
Privity of contract Only parties can sue (with exceptions)
Must be something other than legal duty Performing an existing legal obligation is no consideration

78.7.1 “No consideration, no contract” — and exceptions

Section 25 makes agreements without consideration void, with five exceptions:

TipFive Exceptions Under Section 25
Exception Working content
Natural love and affection Written and registered, between near relations
Past voluntary services Promise to compensate for services already rendered
Time-barred debt Written promise to pay debt barred by limitation
Completed gift Gifts already given
Agency No consideration needed to create agency (Sec. 185)

78.8 Capacity of Parties — Sections 11, 12

Section 11: every person is competent to contract who is:

  • Of the age of majority (18 years; or 21 if guardian appointed).
  • Of sound mind (Sec. 12).
  • Not disqualified by any law (e.g., insolvents, alien enemies, foreign sovereigns, convicts).

A minor’s agreement is void ab initio (Mohori Bibee v. Dharmodas Ghose, 1903 — leading case).

78.10 Lawful Object and Consideration — Section 23

Object or consideration is unlawful if it: (i) is forbidden by law; (ii) defeats the provisions of any law; (iii) is fraudulent; (iv) involves injury to person or property; (v) is regarded as immoral or opposed to public policy.

78.11 Void Agreements — Sections 24–30

TipMajor Void Agreements
Section Void agreement
24 Agreement with unlawful consideration in part
25 Without consideration (subject to exceptions)
26 In restraint of marriage (other than minor)
27 In restraint of trade (with limited exception under sale of goodwill)
28 In restraint of legal proceedings
29 Uncertain agreements
30 Wagering agreements
56 Agreements to do impossible acts

78.12 Performance, Discharge, Breach

TipModes of Discharge of Contract
Mode Working content
Performance Both parties fulfil obligations
Mutual agreement Novation, alteration, rescission, remission, waiver
Lapse of time Limitation Act
Operation of law Death, insolvency
Impossibility / Frustration Sec. 56 — supervening impossibility
Breach Actual or anticipatory

78.13 Remedies for Breach

TipRemedies for Breach (Sec. 73–75)
Remedy Working content
Damages Compensation for actual loss (Sec. 73) — Hadley v. Baxendale rule
Specific performance Court orders performance — Specific Relief Act 1963
Injunction Restrains a party from doing something
Quantum meruit Reasonable payment for what has been done
Rescission Cancellation of contract

78.14 Quasi-Contracts (Sections 68–72)

Quasi-contracts — relations resembling those created by contract, imposed by law to prevent unjust enrichment:

  • Sec. 68: Necessaries supplied to incapable person.
  • Sec. 69: Payment by interested person.
  • Sec. 70: Obligation to pay for non-gratuitous act.
  • Sec. 71: Finder of goods.
  • Sec. 72: Liability of person to whom money is paid by mistake or under coercion.

78.15 Exam-Pattern MCQs

NoteEight-question set

Q1. “An agreement enforceable by law is a contract.” This is the definition under:

A. Section 2(a) B. Section 2(e) C. Section 2(h) D. Section 10

Answer: C. Section 2(h) defines a contract.


Q2. Match each term with its section:

Term Section
(i) Proposal (a) 2(d)
(ii) Acceptance (b) 2(b)
(iii) Consideration (c) 2(a)
(iv) Contract (d) 2(h)

A. (i)-(c), (ii)-(b), (iii)-(a), (iv)-(d) B. (i)-(a), (ii)-(b), (iii)-(c), (iv)-(d) C. (i)-(b), (ii)-(c), (iii)-(d), (iv)-(a) D. (i)-(d), (ii)-(a), (iii)-(b), (iv)-(c)

Answer: A.


Q3. A minor’s agreement is:

A. Voidable at minor’s option B. Voidable at adult party’s option C. Void ab initio D. Valid

Answer: C. Mohori Bibee v. Dharmodas Ghose (1903) — minor’s agreement is void from the beginning.


Q4. Match each vitiating factor with its section:

Factor Section
(i) Coercion (a) 17
(ii) Undue influence (b) 18
(iii) Fraud (c) 16
(iv) Misrepresentation (d) 15

A. (i)-(d), (ii)-(c), (iii)-(a), (iv)-(b) B. (i)-(a), (ii)-(b), (iii)-(c), (iv)-(d) C. (i)-(b), (ii)-(c), (iii)-(d), (iv)-(a) D. (i)-(c), (ii)-(d), (iii)-(b), (iv)-(a)

Answer: A.


Q5. Which of the following is not an exception to “no consideration, no contract”?

A. Written and registered agreement out of natural love and affection B. Promise to compensate past voluntary services C. Promise to pay a time-barred debt in writing D. Oral promise of gift to a stranger

Answer: D. An oral promise of gift to a stranger is not a recognised exception.


Q6. Match each Section with the type of agreement it makes void:

Section Void agreement
(i) 26 (a) Wagering
(ii) 27 (b) In restraint of marriage
(iii) 28 (c) In restraint of trade
(iv) 30 (d) In restraint of legal proceedings

A. (i)-(b), (ii)-(c), (iii)-(d), (iv)-(a) B. (i)-(a), (ii)-(b), (iii)-(c), (iv)-(d) C. (i)-(c), (ii)-(d), (iii)-(b), (iv)-(a) D. (i)-(d), (ii)-(a), (iii)-(c), (iv)-(b)

Answer: A.


Q7. Section 56 deals with:

A. Wagering agreements B. Supervening impossibility / frustration C. Restraint of trade D. Capacity of parties

Answer: B. Doctrine of Frustration / Supervening Impossibility under Section 56.


Q8. The leading case on the postal rule of acceptance is:

A. Mohori Bibee v. Dharmodas Ghose B. Carlill v. Carbolic Smoke Ball C. Adams v. Lindsell D. Hadley v. Baxendale

Answer: C. Adams v. Lindsell (1818) — postal acceptance is effective on posting.

ImportantQuick recall
  • Indian Contract Act 1872: in force from 1 Sept 1872; covers general contract law (Sec. 1–75) + special contracts (124–238).
  • Contract (Sec. 2h) = Agreement + Enforceability.
  • Ten essentials: offer & acceptance, intention, lawful consideration, capacity, free consent, lawful object, not declared void, certainty, possibility, formalities.
  • Categories: valid, void, voidable, illegal, unenforceable.
  • Offer Sec. 2(a); rules; lapse — time, death, rejection, counter-offer, revocation.
  • Acceptance Sec. 2(b); absolute, unqualified, communicated. Adams v. Lindsell (1818) — postal rule.
  • Consideration Sec. 2(d); past/present/future; need not be adequate. Stranger to contract — privity; Chinnaya v. Ramayya — stranger to consideration may sue.
  • Section 25 exceptions: natural love, past voluntary, time-barred debt, gifts, agency.
  • Capacity (Sec. 11): major, sound mind, not disqualified. Minor’s contract void ab initioMohori Bibee (1903).
  • Free consent (13–22): coercion (15), undue influence (16), fraud (17), misrepresentation (18), mistake (20–22).
  • Void agreements (Sec. 24–30): restraint of marriage, trade, legal proceedings; uncertain; wager.
  • Section 56 — supervening impossibility / frustration.
  • Remedies: damages (Sec. 73 — Hadley v. Baxendale), specific performance, injunction, quantum meruit, rescission.
  • Quasi-contracts: Sec. 68–72.