Quasi-Contracts: Obligations Without Agreement
Learning Objectives
By the end of this page, you should be able to:
- Define a quasi-contract and explain why the Indian Contract Act, 1872 calls it a "relation resembling those created by contract."
- State the theory of unjust enrichment and trace it to Moses v. Macferlan (1760).
- Explain each of Sections 68 to 72 of the Indian Contract Act with its conditions and an illustration.
- Apply the three-part unjust enrichment test (enrichment, at the plaintiff's expense, unjust retention) to fact patterns.
- Distinguish quasi-contracts from contracts, implied contracts, and gifts.
- Discuss leading cases: State of West Bengal v. B.K. Mondal & Sons (1962) and Sales Tax Officer v. Kanhaiya Lal (1959).
Quick Answer
A quasi-contract is an obligation the law imposes on a person as if they had made a contract, even though no offer, acceptance, or agreement ever existed. Its purpose is to prevent unjust enrichment — no one should grow rich at another's expense without paying for it. Chapter V of the Indian Contract Act, 1872 (Sections 68–72) codifies five such situations under the honest heading "Of certain relations resembling those created by contract": supply of necessaries to a person incapable of contracting (s.68), reimbursement of a person who pays money another is bound to pay (s.69), compensation for benefits from non-gratuitous acts (s.70), duties of a finder of goods (s.71), and repayment of money paid by mistake or under coercion (s.72). The remedy is restitution — restoring the benefit — not damages for breach.
Overview
Contract law's central idea is consent: obligations arise because parties agreed. But life produces situations where one person ends up holding a benefit that plainly belongs to another, with no agreement in sight — a tradesman feeds a lunatic's family, a bank credits the wrong account, a contractor builds for the government under a contract that turns out to be void. If the law said "no contract, no remedy," the recipient would keep a windfall.
Quasi-contract fills this gap. The classical English explanation was the fiction of an "implied contract"; the modern explanation, which Indian law accepts, is the independent principle of restitution for unjust enrichment. Lord Mansfield laid the foundation in Moses v. Macferlan (1760): the defendant is "obliged by the ties of natural justice and equity to refund the money."
The Indian Contract Act deliberately avoids the word "quasi-contract." Chapter V is titled "Of certain relations resembling those created by contract" — the draftsmen chose description over fiction. For exams, master the five sections, their precise conditions, and the leading cases; for practice, note that Section 70 alone generates enormous government-contract litigation.
Core Concepts
1. The Doctrine of Unjust Enrichment
Definition: Unjust enrichment occurs when (i) the defendant is enriched by receiving a benefit, (ii) the enrichment is at the plaintiff's expense, and (iii) retaining it would be unjust. Restitution is the remedy that reverses it.
Explanation: Quasi-contractual liability is not based on consent (like contract) or wrongdoing (like tort); it is a third, independent source of obligation. The law asks a single question: is the defendant holding value that, in justice, belongs to the plaintiff? If yes, the law constructs an obligation to restore it. That is why the measure of recovery is the value of the benefit received (quantum meruit for services, refund for money), never expectation damages — there was no promise whose performance can be valued.
Example: A courier delivers a parcel of expensive medicines to the wrong flat. The occupant, realising the mistake, uses them anyway. He must pay their value — not because he agreed to buy them, but because keeping them for free would unjustly enrich him.
Real-World Example: Wrong-credit banking cases are everyday unjust enrichment: when a bank erroneously transfers money into a customer's account, the customer holds it under a quasi-contractual obligation to repay (s.72), and spending it knowingly can even attract criminal liability.
Why It Matters: The doctrine supplies the reason behind all five sections — in an exam, framing your answer around enrichment/expense/injustice before citing the section shows understanding rather than memorisation.
Common Misunderstanding: Students treat quasi-contract as a "kind of contract." It is not — there is no agreement, no consent, no offer and acceptance. The Supreme Court in B.K. Mondal emphasised that Section 70 liability arises outside contract; the phrase "quasi" signals resemblance in remedy (a personal money claim), not in origin.
2. Necessaries Supplied to Persons Incapable of Contracting (Section 68)
Definition: Section 68: if a person incapable of entering into a contract (a minor or a person of unsound mind), or anyone whom such incapable person is legally bound to support, is supplied by another with necessaries suited to his condition in life, the supplier is entitled to be reimbursed from the property of such incapable person.
Explanation: A minor's agreement is void ab initio (Mohori Bibee v. Dharmodas Ghose, 1903), so a trader who supplies goods to a minor cannot sue on contract. Section 68 provides the safety valve — but with two built-in limits: (1) the goods must be necessaries relative to the person's station in life and actual requirements at the time (food, clothing, education, medical aid — not luxuries, and not even useful goods the minor already has in sufficient supply); (2) the claim lies only against the incapable person's property, never against him personally. If the minor has no property, the supplier recovers nothing.
Example: A supplies school uniforms and textbooks to B, a minor with inherited property. A can recover their reasonable price from B's property. If A had supplied a diamond watch, no recovery — not a necessary.
Real-World Example: The classic English illustration is Nash v. Inman (1908): a tailor supplied eleven fancy waistcoats to a Cambridge undergraduate who was already adequately supplied with clothes; the court held they were not necessaries, so nothing was payable. The same reasoning applies under Section 68.
Why It Matters: Without s.68, no one would risk supplying even food or medicine to minors and persons of unsound mind — the provision protects the incapable person's welfare while protecting their person from liability.
Common Misunderstanding: That the minor is "personally liable to pay for necessaries." Wrong — liability attaches only to the property; there is no personal decree against the minor. Also note "condition in life": the same item can be a necessary for one person and a luxury for another.
3. Payment by an Interested Person (Section 69) and Non-Gratuitous Acts (Section 70)
Definition: Section 69: a person who is interested in the payment of money which another is bound by law to pay, and who therefore pays it, is entitled to be reimbursed by the other. Section 70: where a person lawfully does anything for another or delivers anything to him, not intending to do so gratuitously, and the other person enjoys the benefit, the latter must compensate or restore.
Explanation: Section 69 requires: (i) the plaintiff has a genuine interest in the payment (protecting his own property or interest — not a mere volunteer or busybody), (ii) the defendant was legally bound to pay, and (iii) the plaintiff actually paid. The Act's own illustration: B holds land on a lease from zamindar A; A defaults on revenue and the land is advertised for sale, which would annul B's lease; B pays the arrears to save his lease — A must reimburse B. Section 70 has three conditions (B.K. Mondal): the act was done lawfully; it was not intended gratuitously; and the defendant enjoyed the benefit — enjoyment implies a real choice to accept or return, so a benefit forced on someone who could not refuse it does not qualify.
Example (s.69): A mortgagee pays municipal taxes on the mortgaged property to prevent its attachment and sale. The owner, who was bound to pay them, must reimburse the mortgagee.
Real-World Example (s.70): In State of West Bengal v. B.K. Mondal & Sons (AIR 1962 SC 779), a contractor constructed a kutcha road, godown, and offices at a government officer's request, but the "contract" failed to comply with the mandatory constitutional formalities (now Article 299), making it unenforceable. The State had accepted and used the buildings. The Supreme Court held the State liable to compensate under Section 70 — the work was lawful, plainly not gratuitous, and the State had enjoyed the benefit. The principle now underpins countless claims against governments on void contracts.
Why It Matters: Section 70 is the workhorse of Indian restitution — it rescues honest parties from technically void arrangements, especially in government contracting where Article 299 formalities are often missed.
Common Misunderstanding: Two traps. Under s.69, if the plaintiff himself was also bound to pay, the section does not apply (he is discharging his own liability — contribution rules apply instead); a purely officious volunteer also fails the "interested" test. Under s.70, gifts and acts intended gratuitously can never ground a claim — intention at the time of the act controls, not later regret.
4. Finder of Goods (Section 71)
Definition: Section 71: a person who finds goods belonging to another and takes them into his custody is subject to the same responsibility as a bailee.
Explanation: The finder never agreed to anything with the owner — yet the law imposes bailee-like duties: take reasonable care of the goods (the s.151 standard — care an ordinary prudent person takes of own goods of similar value), make reasonable efforts to trace the owner, not use the goods for personal benefit, and return them (with any accretions) when the owner appears. The finder also gets rights: a lien over the goods for expenses of preservation and finding the owner (s.168 — but no suit for such expenses), a right to sue for any specific reward the owner offered, and a right of sale under s.169 when the owner cannot with reasonable diligence be found and the goods are perishing or the lawful charges exceed two-thirds of their value.
Example: X finds a pedigreed dog straying on the road and shelters it. X must feed and care for it and try to locate the owner; when the owner turns up, X must return the dog but may retain it until his reasonable expenses are paid.
Real-World Example: Lost-and-found counters at railway stations and airlines operate on exactly this legal footing — custodians of found property hold it as quasi-bailees, and their charges for storage reflect the finder's lien for preservation expenses.
Why It Matters: Section 71 shows the "relation resembling contract" idea perfectly: bailment normally requires a contract of delivery, yet here bailment duties arise from the unilateral act of taking custody.
Common Misunderstanding: "Finders keepers." False in law — the finder gets possession good against everyone except the true owner, never ownership (unless the owner cannot be found after due search and the statutory sale conditions are met). Conversely, a person who merely sees lost goods but does not take custody incurs no duty at all.
5. Money Paid by Mistake or Under Coercion (Section 72)
Definition: Section 72: a person to whom money has been paid, or anything delivered, by mistake or under coercion, must repay or return it.
Explanation: Two limbs. Mistake: the Supreme Court in Sales Tax Officer, Banaras v. Kanhaiya Lal Mukundlal Saraf (AIR 1959 SC 135) held that "mistake" in s.72 covers mistakes of law as well as mistakes of fact — a trader who paid sales tax on forward transactions under a provision later declared ultra vires could recover it. Coercion here is broader than the s.15 definition — it includes practical compulsion and oppressive circumstances, not only threats amounting to offences (e.g., money extracted by an illegal distress or under protest to release goods wrongfully detained). The great modern refinement is Mafatlal Industries Ltd. v. Union of India (1997): in tax-refund cases the claimant may be denied restitution if he has passed on the tax burden to consumers — refunding him would unjustly enrich him — so unjust enrichment cuts both ways.
Example: A and B jointly owe Rs 100 to C. A pays the full amount; B, not knowing this, also pays C Rs 100. C is bound to repay B — this is the Act's own illustration of payment by mistake.
Real-World Example: Excess electricity or telecom billing recovered under protest, double online payments caused by gateway glitches, and taxes paid under unconstitutional levies are all recovered on the s.72 principle — it is probably the most invoked quasi-contractual provision in consumer life.
Why It Matters: Section 72 intersects with constitutional and tax law (Article 265: no tax without authority of law), and Kanhaiya Lal plus Mafatlal form a classic answer pair — recovery in principle, tempered by the passing-on defence.
Common Misunderstanding: Students assume the traditional English rule that money paid under mistake of law is irrecoverable applies in India. It does not — Kanhaiya Lal settled that s.72 draws no distinction between mistake of fact and mistake of law.
Visual Learning
Choosing the right section in a problem question:
Key Terms
| Term | Definition | Context |
|---|---|---|
| Quasi-contract | Obligation imposed by law resembling a contractual one, without agreement | Chapter V, ss.68–72 ICA: "relations resembling those created by contract" |
| Unjust enrichment | Retaining a benefit gained at another's expense without legal justification | Theory underlying all five sections; Moses v. Macferlan (1760) |
| Restitution | Remedy restoring the benefit or its value to the plaintiff | Contrast with damages (compensation for breach) |
| Necessaries | Goods/services suited to the incapable person's condition in life and actual needs | s.68; Nash v. Inman — luxuries excluded |
| Interested person | One who pays to protect his own interest, not as a volunteer | s.69; defendant must be the party bound by law to pay |
| Non-gratuitous act | Act done without intention of gift, expecting payment | s.70; intention judged at the time of the act |
| Enjoyment of benefit | Voluntary acceptance of the benefit with an option to refuse | s.70 condition stressed in B.K. Mondal |
| Finder of goods | Person taking custody of another's lost goods | s.71; bailee's duties, lien under s.168, sale under s.169 |
| Coercion (s.72 sense) | Practical compulsion, wider than s.15 coercion | Payments under protest, illegal detention of goods |
| Quantum meruit | "As much as earned" — reasonable value of work done | Measure of recovery for services under quasi-contract |
| Passing-on defence | No refund if the claimant shifted the burden to others | Mafatlal Industries (1997), tax refund cases |
Common Mistakes
Mistake 1: "A quasi-contract is an implied contract inferred from the parties' conduct." Why it's wrong: An implied contract is still a real contract — consent exists but is shown by conduct (boarding a bus). A quasi-contract involves no consent at all; the law imposes the obligation to prevent unjust enrichment. Correct approach: Classify by the source of obligation: express contract (words), implied contract (conduct), quasi-contract (imposed by law, ss.68–72). Only the first two need offer and acceptance.
Mistake 2: "A minor supplied with necessaries is personally liable to pay for them." Why it's wrong: Section 68 confines the supplier's claim to the property of the incapable person. There is no personal liability — consistent with Mohori Bibee's rule that a minor's agreement is void ab initio. Correct approach: State both limits together: (i) only necessaries suited to the condition in life and actual need; (ii) reimbursement only out of the minor's property — a propertyless minor means an unrecoverable claim.
Mistake 3: "Money paid under a mistake of law can never be recovered." Why it's wrong: That was the old English position; Indian law rejected it. Sales Tax Officer v. Kanhaiya Lal (1959) held s.72's "mistake" includes mistakes of law — tax paid under a provision later held invalid was refundable. Correct approach: Cite Kanhaiya Lal for recoverability, then qualify with Mafatlal Industries (1997): in indirect-tax cases the refund is denied where the claimant passed the burden on to customers, because restitution must not create a fresh unjust enrichment.
Comparison and Connections
| Aspect | Contract | Quasi-contract | Tort |
|---|---|---|---|
| Source of obligation | Agreement / consent | Imposed by law to prevent unjust enrichment | Imposed by law for civil wrongs |
| Offer and acceptance | Required | Absent | Absent |
| Remedy | Damages (expectation), specific performance | Restitution / quantum meruit | Unliquidated damages |
| Governing law | ICA 1872, ss.1–67 and specific chapters | ICA 1872, ss.68–72 (Chapter V) | Uncodified common law |
| Duty owed to | The other contracting party | The person at whose expense enrichment occurred | Persons generally |
| Frequently confused pair | Distinction |
|---|---|
| s.69 vs s.70 | s.69 = paying money another was legally bound to pay; s.70 = conferring any benefit by lawful non-gratuitous act that is enjoyed |
| s.72 coercion vs s.15 coercion | s.72 is wider — practical compulsion suffices; s.15 needs threatened/committed unlawful acts vitiating consent |
| Finder (s.71) vs thief | Finder takes custody lawfully with bailee's duties; possession good against all but the owner |
| Quantum meruit vs damages | Value of benefit actually conferred vs compensation for loss of the promised bargain |
Connections: s.68 builds on capacity rules (Capacity to Contract); s.71 borrows the bailee standard from bailment law (Specific Contracts); quantum meruit reappears as a remedy when contracts are discharged (Remedies for Breach).
Practice Questions
Recall
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List the five quasi-contractual situations in the Indian Contract Act with their section numbers. Answer guidance: s.68 necessaries to incapable persons; s.69 payment by an interested person; s.70 non-gratuitous acts whose benefit is enjoyed; s.71 finder of goods as bailee; s.72 money/things delivered by mistake or coercion. Note the chapter heading "certain relations resembling those created by contract."
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What are the three conditions for liability under Section 70? Answer guidance: (i) the thing was done or delivered lawfully; (ii) the doer did not intend to act gratuitously; (iii) the other person enjoyed the benefit (with a real option to accept or reject) — per B.K. Mondal.
Understanding
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Why does the Indian Contract Act avoid the term "quasi-contract," and what theory replaces the implied-contract fiction? Answer guidance: Explain the fiction problem (pretending consent exists where it does not — it collapses for parties incapable of consenting, like minors under s.68); the Act instead describes the relations. Modern basis: restitution for unjust enrichment (Moses v. Macferlan; enrichment–expense–injustice analysis).
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How does the "enjoyment of benefit" requirement in Section 70 protect defendants? Answer guidance: It prevents liability being thrust on someone by officious conferral — the defendant must have had a genuine choice to accept or return the benefit; voluntary acceptance is what makes retention without payment unjust. Illustrate with B.K. Mondal (State used the buildings) versus a benefit impossible to reject.
Application
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A, a trader, supplies a month's groceries and life-saving medicines to B, a person of unsound mind who lives lavishly off inherited property, and also delivers a home-theatre system B's caretaker ordered. Advise A. Answer guidance: Groceries and medicines = necessaries suited to condition in life → recoverable under s.68, but only from B's property, not personally. Home-theatre system = not a necessary (luxury) → no s.68 claim; explore s.70 against the caretaker or restitution of the goods themselves. Distinguish Nash v. Inman reasoning.
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A company pays excise duty for three years under a notification later struck down as ultra vires, having added the duty to its product prices. It sues for a refund under Section 72. Decide. Answer guidance: Kanhaiya Lal: mistake of law is within s.72, so recovery is available in principle. But Mafatlal: the company passed the burden to consumers, so a refund would unjustly enrich it — refund denied (or directed to a consumer welfare fund under tax statutes). Full marks for spotting both cases and the doctrine's two-way operation.
Analysis
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"Section 70 has become the most important provision in Chapter V because of how governments contract." Critically examine with reference to B.K. Mondal. Answer guidance: Explain Article 299 formalities and how their breach voids government contracts; s.70 prevents the State from taking work and pleading its own contract's invalidity. Evaluate: protects honest contractors, but critics say it lets officials bypass constitutional safeguards knowing restitution will follow; note courts limit recovery to benefit actually enjoyed, not contract price or profit.
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Compare the position of a finder of goods with that of a contractual bailee. Is imposing bailee duties on a finder fair? Answer guidance: Similarities: reasonable-care standard (s.151), duty to return, no unauthorised use. Differences: no consensual delivery, finder acquires duties unilaterally by taking custody, gets lien (s.168) and sale right (s.169) as compensating rights, cannot sue for expenses. Fairness debate: the finder chose to intervene (assumption of responsibility) versus deterring good Samaritans; note the alternative — leaving goods to perish — and conclude.
FAQ
Q1: If there is no contract, why is this topic in the Contract Act at all? Because the remedy resembles a contractual money claim, and the situations arise in commercial settings the Act already governs. The drafters placed these obligations in Chapter V with the honest label "relations resembling those created by contract" — borrowing the contract-law remedy while abandoning the contract-law basis.
Q2: Can I claim under Section 70 for a benefit I conferred intending it as a favour, if I later change my mind? No. The non-gratuitous intention must exist at the time of the act. If you intended a gift or free help, no later disappointment converts it into a compensable service — the Act's own illustration contrasts a trader leaving goods (payable) with dropping them intending a gift (not payable).
Q3: What exactly can the supplier recover under Section 68 — the agreed price? There is no agreed price, because there is no agreement. The supplier recovers the reasonable value of the necessaries, and only out of the incapable person's property. If the goods were overpriced, recovery is limited to fair value.
Q4: Does Section 72 apply when I pay a disputed bill "under protest" to avoid disconnection of an essential service? Generally yes — payment under practical compulsion falls within the wider meaning of "coercion" in s.72 (it need not satisfy the s.15 definition). Paying under protest preserves your position; you can then sue to recover the excess if the demand proves unlawful.
Q5: What is the difference between quantum meruit and a Section 70 claim? They overlap heavily. Quantum meruit ("as much as earned") is the measure — reasonable remuneration for work done. Section 70 is a statutory basis for such recovery in India where a benefit was conferred non-gratuitously and enjoyed. Quantum meruit also operates when work is done under a contract discharged midway — covered under remedies for breach.
Quick Revision
- Quasi-contract = obligation imposed by law without agreement; basis = unjust enrichment (Moses v. Macferlan, 1760); remedy = restitution, not damages.
- Chapter V, ICA 1872: "certain relations resembling those created by contract" — ss.68–72.
- s.68: necessaries to minor/person of unsound mind (or dependants) → reimbursement from property only, never personal liability; necessaries = suited to condition in life + actually needed (Nash v. Inman).
- s.69: interested person pays money another is bound by law to pay → reimbursement; volunteers and persons paying their own dues excluded.
- s.70: lawful act + non-gratuitous intention + benefit enjoyed → compensation; State of W.B. v. B.K. Mondal & Sons (1962) — State liable despite void contract (Art. 299 defect).
- s.71: finder of goods = bailee (s.151 care, trace owner, no personal use); rights — lien (s.168), reward, sale (s.169).
- s.72: money/things paid by mistake or coercion → repay; mistake includes mistake of law (Kanhaiya Lal, 1959); coercion wider than s.15; passing-on defence (Mafatlal, 1997).
- Measure of recovery: value of benefit / quantum meruit — never expectation loss.
- Quasi-contract ≠ implied contract: implied contract has consent by conduct; quasi-contract has no consent at all.
- Exam pairing: s.68 with minority (Mohori Bibee); s.70 with government contracts; s.72 with tax refunds.
Related Topics
Prerequisites
- Introduction to Contract Law — what makes a real contract, so you can see what is missing here
- Capacity to Contract — minority and unsoundness of mind, the foundation of s.68
Related Topics
- Consideration — quasi-contracts bind despite the absence of consideration
- Specific Contracts — bailment rules that s.71 borrows for finders
- Free Consent — s.15 coercion versus the wider s.72 coercion
Next Topics
- Remedies for Breach — quantum meruit as a remedy and how restitution differs from damages
- Electronic Contracts — mistaken online payments as modern s.72 territory