Every business transaction — buying raw material, hiring an employee, taking a bank loan, signing a software license — is a contract. The Indian Contract Act, 1872 is the foundational statute that governs all commercial agreements in India. It defines what makes an agreement legally enforceable, what vitiates consent, and what happens when one party fails to perform. Whether you are advising a startup on its vendor agreements or auditing a company's contingent arising from disputed contracts, the Contract Act is the starting point. This chapter lays the complete legal and analytical foundation you need.
Before You Start
🎯 Why learn this?
The Indian Contract Act is the single most important statute for CA Foundation Business Laws — expect 20–25 marks from this chapter. The definitions, essentials of a valid contract, and the five vitiating factors of consent are tested in almost every examination. More importantly, contract law is the language of commerce: every transaction your clients enter into is governed by these rules.
📚What you'll learn
- •The definition of contract, agreement, and the distinction between them
- •All 9 essentials of a valid contract
- •Rules governing offer (proposal) and its communication, revocation, and lapse
- •Rules governing acceptance and the postal rule
- •Consideration — definition, rules, and exceptions to "no consideration, no contract"
- •Capacity to contract — who can and cannot contract
- •Free consent — all 5 vitiating factors: coercion, undue influence, fraud, misrepresentation, mistake
- •Legality of object and consideration
- •Performance, discharge, and remedies for breach of contract
✅ After this chapter, you can…
- ✓Distinguish between void, voidable, valid, illegal, and unenforceable contracts
- ✓Identify whether free consent is present or absent in a given scenario
- ✓State the rules for a valid offer and acceptance
- ✓Explain the modes of discharge of a contract and the remedies available on breach
💼 Real problems this solves at work
- →CA firms advise clients when to invoke force majeure clauses (discharge by impossibility) — this chapter tells you the legal basis
- →When a company's debtor denies payment claiming the contract was voidable, the CA must assess the strength of that claim using consent vitiating factors
- →Drafting vendor contracts, employment agreements, and NDA clauses requires understanding of offer, acceptance, consideration, and capacity
- →Breach of contract damages are recognised as contingent under AS 29 — you need contract law to assess whether a liability is probable
01Preliminary Concepts — Contract, Agreement, Obligation
Under Section 2(h) of the Indian Contract Act, 1872: "An agreement enforceable by law is a contract." Breaking this down:
- Agreement = Offer + Acceptance (Section 2(e): "Every promise and every set of promises forming the consideration for each other")
- Contract = Agreement + Enforceability by law
- Promise = Accepted proposal (Section 2(b))
| Term | Definition | Example |
|---|---|---|
| Agreement | Every promise or set of promises forming consideration for each other | A agrees to sell his car to B for ₹3 lakhs; B agrees to pay — this is an agreement |
| Contract | Agreement enforceable by law | The above agreement signed in writing with parties of legal capacity = contract |
| Void Agreement | Agreement not enforceable by law from the beginning (Section 2(g)) | Agreement with a minor; agreement with unlawful object |
| Void Contract | Contract that was valid when made but ceases to be enforceable later | Contract that becomes impossible to perform due to subsequent illegality |
| Voidable Contract | Contract enforceable at the option of one party (the aggrieved party) but not the other | Contract obtained by coercion — victim can enforce or avoid it |
| Illegal Agreement | Agreement forbidden by law; associated agreements also become void | Contract to smuggle goods; betting agreements in most states |
| Unenforceable Contract | Valid contract but cannot be enforced due to some technical defect (e.g., no stamp) | Contract requiring registration but not registered |
Exam tip: Critical ICAI distinction: All contracts are agreements, but not all agreements are contracts. A void agreement is never a contract. A voidable contract IS a contract — just one that can be avoided by the aggrieved party. An illegal agreement is always void; a void agreement may not be illegal.
02Essentials of a Valid Contract
Section 10 states that all agreements are contracts if made by free consent of parties competent to contract, for a lawful consideration and with a lawful object. The following 9 essentials must be satisfied:
| Essential | Key Rule | Consequence if Missing |
|---|---|---|
| 1. Offer and Acceptance | Valid offer + unqualified acceptance = agreement | No agreement; no contract |
| 2. Intention to Create Legal Relations | Parties must intend legal consequences; social/domestic agreements presumed not to | No contract (e.g., husband promising wife money for household) |
| 3. Lawful Consideration | Each party must give something of value; must be lawful | Void agreement |
| 4. Capacity of Parties | Parties must be of legal age (18+), sound mind, not disqualified by law | Contract with minor is void ab initio |
| 5. Free Consent | Consent not obtained by coercion, undue influence, fraud, misrepresentation, or mistake | Voidable (or void in case of certain mistakes) |
| 6. Lawful Object | Purpose of contract must not be illegal, immoral, or against public policy | Void/illegal agreement |
| 7. Not Expressly Declared Void | Must not be a type of agreement declared void under Sections 24–30 | Void (e.g., agreement in restraint of trade) |
| 8. Certainty and Possibility of Performance | Terms must be certain and performance must be possible | Void (Section 29: uncertain; Section 56: impossible) |
| 9. Legal Formalities (where required) | Some contracts require writing, stamp, registration | Unenforceable if formality not met |
03Offer (Proposal)
Under Section 2(a): "When one person signifies to another his willingness to do or abstain from doing anything, with a view to obtaining the assent of that other to such act or abstinence, he is said to make a proposal."
Rules for a Valid Offer
- Must be communicated to the offeree — an offer not communicated cannot be accepted
- Must be certain and definite — vague offers are void
- Must intend legal relations
- Must be distinguished from an invitation to offer (invitatio ad offerendum) — catalogue prices, advertisements, price lists, prospectus are invitations to offer, NOT offers
- May be express (spoken or written) or implied (by conduct)
- May be general (to the world at large — Carlill v Carbolic Smoke Ball) or specific (to one person)
When Does an Offer Lapse?
- On expiry of time specified (or reasonable time if no time specified)
- On death or insanity of the offeror before acceptance
- On rejection by offeree (including counter-offer)
- On revocation by offeror before acceptance
- On failure to accept by the prescribed mode
- When acceptance condition is not fulfilled
Exam tip: Invitation to Offer vs Offer: A shopkeeper's price tag on goods is an invitation to offer — the customer makes the offer by picking up the goods and going to the counter. The shopkeeper may accept or refuse. Advertisements are invitations to offer unless they are "specific offers to the world" (like a reward advertisement).
04Acceptance
Section 2(b): "When the person to whom the proposal is made signifies his assent thereto, the proposal is said to be accepted."
Rules for Valid Acceptance
- Must be absolute and unqualified — a conditional acceptance is a counter-offer, not acceptance (Section 7)
- Must be communicated to the offeror — mental acceptance is not enough
- Must be in the prescribed manner; if no manner prescribed, in a reasonable manner
- Must be made while offer is still open (before lapse or revocation)
- Must be by the person to whom the offer was made
- Silence is generally NOT acceptance (offeror cannot impose contract by saying "if I hear nothing, I assume acceptance")
Communication and the Postal Rule (Section 4)
| Communication | Becomes Complete When... |
|---|---|
| Communication of Offer | When it comes to the knowledge of the person to whom it is made (offeree) |
| Communication of Acceptance (against Proposer) | When acceptance is PUT IN COURSE OF TRANSMISSION (e.g., letter posted) — Proposer is bound from this point |
| Communication of Acceptance (against Acceptor) | When acceptance comes to the knowledge of the proposer — Acceptor is bound only from here |
| Revocation of Offer | When revocation notice comes to knowledge of offeree |
| Revocation of Acceptance | When revocation notice comes to knowledge of offeror (must arrive BEFORE or at SAME TIME as acceptance) |
Postal Rule
A in Delhi offers to sell goods to B in Mumbai. B posts acceptance on 5th Jan. A receives acceptance on 8th Jan. A revokes his offer on 6th Jan (before receiving B's acceptance). B's revocation of acceptance arrives on 9th Jan.
- →Contract is formed on 5th Jan (when B posts acceptance — complete against A)
- →A's revocation on 6th Jan is ineffective — contract was already formed on 5th Jan
- →B's revocation of acceptance on 9th Jan is too late (acceptance already communicated to A on 8th Jan)
- →Result: Valid contract exists
05Consideration
Section 2(d): "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 or abstinence or promise is called a consideration for the promise."
Key Rules of Consideration
- Must move at the desire of the promisor — act done at the desire of a third party or voluntarily is not valid consideration
- May move from the promisee OR any other person (unlike English law) — third-party consideration is valid in India
- May be past, present (executed), or future (executory) — unlike English law, past consideration IS valid in India
- Must be real and not illusory — natural love and affection, moral obligation alone are not consideration
- Need not be adequate — courts will not inquire into adequacy if consent was free
- Must be lawful — cannot be illegal, immoral, or opposed to public policy
Exceptions to "No Consideration, No Contract" (Section 25)
| Exception | Condition | Example |
|---|---|---|
| Natural Love and Affection (Section 25(1)) | Must be: written, registered, between parties in near relation | Father gifts property to son by registered deed out of natural love |
| Past Voluntary Services (Section 25(2)) | Services rendered voluntarily in the past; promisor was legally compellable to pay | A saves B from drowning; B later promises to pay A ₹10,000 |
| Time-barred Debt (Section 25(3)) | Debt barred by limitation; written promise signed by the debtor | Debtor signs a written promise to repay an old debt that is time-barred under Limitation Act |
| Completed Gift | A gift already made does not require consideration to be valid | Father gifts car to son — no consideration needed to enforce the gift as completed |
06Capacity to Contract
Section 11: "Every person is competent to contract who is of the age of majority according to the law to which he is subject, and who is of sound mind, and is not disqualified from contracting by any law to which he is subject."
Minors (Under 18 Years)
- Contract with a minor is void ab initio (void from the beginning) — Mohori Bibee v Dharmodas Ghose (1903)
- Minor cannot ratify a contract on attaining majority
- No estoppel against a minor — minor cannot be held to contract even if minor misrepresented age
- Minor can always be a BENEFICIARY (e.g., can receive gift, can be promisee)
- Minor's agreement for necessaries: minor's estate is liable to pay a reasonable price (not the minor personally)
- Beneficial contracts of service/apprenticeship may be binding on minor (judicial discretion)
Persons of Unsound Mind
Section 12: "A person is said to be of sound mind for the purpose of making a contract if, at the time when he makes it, he is capable of understanding it and of forming a rational judgement as to its effect upon his interests." Contract by person of unsound mind is void. However, a person usually of unsound mind may contract in a lucid interval.
Other Disqualified Persons
| Category | Restriction |
|---|---|
| Alien enemy | Cannot contract during war; contracts made before war are suspended |
| Foreign sovereigns and diplomats | Can contract but cannot be sued without consent of the Government of India |
| person | Property vests in official receiver; cannot deal with property |
| Company (ultra vires) | Cannot contract beyond its objects clause in MOA |
07Free Consent — Five Vitiating Factors
Section 14: "Consent is said to be free when it is not caused by (1) coercion, (2) undue influence, (3) fraud, (4) misrepresentation, or (5) mistake." Consent obtained by 1–4 makes the contract voidable at the option of the aggrieved party. Certain mistakes make a contract void.
1. Coercion (Section 15)
"Coercion is the committing or threatening to commit any act forbidden by the Indian Penal Code, or the unlawful detaining or threatening to detain, any property, to the prejudice of any person whatever, with the intention of causing any person to enter into an agreement."
| Feature | Detail |
|---|---|
| Effect | Contract is voidable at the option of the party whose consent was coerced |
| May be by a third party | Coercion need not be by the other contracting party |
| IPC required? | Act must be forbidden by IPC OR unlawful detention of property |
| Example | A threatens to kill B's son unless B agrees to sell land at below market price — voidable |
2. Undue Influence (Section 16)
"A contract is said to be induced by undue influence where the relations subsisting between the parties are such that one of the parties is in a position to dominate the will of the other and uses that position to obtain an unfair advantage over the other."
| When is a person presumed to dominate will? | Presumed in these relationships |
|---|---|
| Real or apparent authority over the other | Master-servant, employer-employee |
| Fiduciary relationship | Doctor-patient, lawyer-client, trustee-beneficiary, teacher-student, parent-child |
| Mental distress, mental or bodily capacity | Person of unsound mind, aged, ill |
3. Fraud (Section 17)
"Fraud means and includes any of the following acts committed by a party to a contract or his agent with intent to deceive another party thereto or his agent, or to induce him to enter into the contract..."
- Suggestion of a fact known to be false
- Active concealment of a fact when there is a duty to disclose
- Promise made without intention of performing it
- Any other act fitted to deceive
- Any act or omission declared fraudulent by law
| Feature | Fraud | Misrepresentation |
|---|---|---|
| Intent to deceive | YES — deliberate false statement | NO — honest belief in truth |
| Effect | Voidable; aggrieved party may also claim damages | Voidable; but generally no damages (except under Section 19A) |
| Rescission possible? | Yes, unless third party acquired rights for value without notice | Yes, unless restitution impossible |
| Silence as fraud? | Only when duty to speak (insurance, fiduciary) or when silence is deceptive in context | Not applicable |
4. Misrepresentation (Section 18)
- Positive assertion of a fact which is not true (but believed to be true)
- Breach of duty (without intent to deceive) which misleads the other party
- Causing party to make a mistake about the subject matter
5. Mistake (Sections 20–22)
| Type of Mistake | Effect | Example |
|---|---|---|
| Bilateral Mistake of Fact (Section 20) | Contract is VOID (not voidable) | Both buyer and seller believe a specific horse is alive — horse already dead; contract void |
| Unilateral Mistake of Fact (Section 22) | Contract NOT void (no relief) | Only one party mistaken — generally must bear own mistake |
| Mistake of Law of India (Section 21) | NOT an excuse — contract not void | "Ignorance of law is no excuse" |
| Mistake of Foreign Law | Treated as Mistake of Fact — may make contract void | Both parties mistaken about foreign statute |
08Legality of Object and Consideration
Section 23 states that consideration or object of an agreement is unlawful if it:
- Is forbidden by law
- Would defeat the provisions of any law
- Is fraudulent
- Involves injury to person or property of another
- The court regards it as immoral
- The court regards it as opposed to public policy
Agreements Expressly Declared Void (Sections 24–30)
| Section | Type of Void Agreement |
|---|---|
| Section 24 | Agreements where part of consideration or object is unlawful — whole agreement void |
| Section 25 | Agreement without consideration (subject to exceptions) |
| Section 26 | Agreement in restraint of marriage (void) — partial restraint on married persons may be valid |
| Section 27 | Agreement in restraint of trade — void (exceptions: sale of goodwill, partnership dissolution, service agreements with reasonable restrictions) |
| Section 28 | Agreement in restraint of legal proceedings — void (except contract to refer disputes to arbitration) |
| Section 29 | Agreement the meaning of which is not certain or capable of being made certain — void |
| Section 30 | Agreements by way of wager — void (not illegal; transactions valid except in Maharashtra and Gujarat where wagering agreements are also illegal) |
09Performance of Contract
Performance of a contract means the doing of that which is required by the contract. A contract is discharged by performance when both parties have fulfilled their respective obligations.
Who Can Perform?
- The promisor personally (for contracts requiring personal skill — surgeon, artist)
- The promisor's agent (for commercial contracts not requiring personal performance)
- The promisor's legal representative (on death — except personal contracts)
- A third party (if accepted by the promisee as full satisfaction — accord and satisfaction)
Joint Promises
| Type | Rule |
|---|---|
| All joint promisors must perform | Default rule — all must perform together |
| Any can perform if others refuse/unable | Section 43 — if one performs, others are not discharged from contributing |
| Joint and several liability | Each is liable for the whole; promisee can sue any one or all |
| Death of joint promisor | Liability passes to surviving joint promisors; ultimately to legal representatives |
10Discharge of Contract
A contract is said to be discharged when the obligations created by it come to an end. There are six modes:
| Mode of Discharge | How It Works | Example |
|---|---|---|
| By Performance | Both parties fulfill their obligations | Seller delivers goods, buyer pays — contract over |
| By Agreement | Parties mutually agree to cancel or modify (novation, rescission, remission, alteration) | Novation: A owes B; by agreement B now owes C instead of A |
| By Impossibility (Frustration) — Section 56 | Contract becomes impossible to perform after formation due to supervening circumstances beyond parties' control | Concert hall burns down before performance; contract discharged |
| By Lapse of Time | Limitation Act — if not performed within time limit, promisee's right of action is barred | Goods to be delivered by 31 March; not delivered; after 3 years, right to sue time-barred |
| By Operation of Law | Death, , , material alteration of written contract | Debtor adjudicated — debt discharged by operation of law |
| By Breach | Party fails to perform; other party is discharged from further performance and can claim remedies | Builder abandons work — client is discharged and can sue for damages |
Exam tip: Section 56 (Doctrine of Frustration): "A contract to do an act which, after the contract is made, becomes impossible, or by reason of some event which the promisor could not prevent, unlawful, becomes void when the act becomes impossible or unlawful." Note: self-induced frustration (where promisor caused impossibility) does NOT discharge the contract.
11Remedies for Breach of Contract
When a party breaches a contract, the innocent party may pursue one or more of the following remedies:
| Remedy | Nature | Key Rules |
|---|---|---|
| Rescission | Cancelling the contract — treating it as never existing | Available when breach is so fundamental that the purpose is defeated; must return any benefit received |
| Damages (Section 73) | Monetary compensation for loss suffered | Hadley v Baxendale rule: only natural/probable loss OR loss in contemplation of both parties at time of contract; duty to mitigate |
| Damages / Penalty (Section 74) | Pre-agreed amount in contract for breach | Court awards "reasonable compensation" not exceeding the amount stipulated (regardless of whether damages or penalty) |
| Quantum Meruit | Reasonable payment for work partially done before breach | When contract is ended by breach, party who has partly performed may claim for what has been done |
| Specific Performance | Court orders party to perform the contract | Equitable remedy; granted only when damages inadequate; not for personal services; only for unique property |
| Injunction | Court order to prevent breach of negative covenant | Prevents party from doing something contrary to contract (e.g., not to work for competitors) |
Damages — Hadley v Baxendale Rule
A mill owner sends a broken crankshaft to a carrier for repair. The carrier delays delivery, causing the mill to remain closed for extra days, losing ₹5 lakh in profits. The carrier did not know the shaft was the only one.
- →Under Hadley v Baxendale: damages = only what flows naturally from the breach OR was in contemplation of both parties
- →Mill closure was a special circumstance — carrier had NO knowledge of it
- →Therefore: only normal delay damages recoverable; the ₹5 lakh loss in profits NOT recoverable
- →Lesson: Inform the other party of special circumstances at time of contract to make those losses recoverable
Chapter Summary
- 1Contract = Agreement + Enforceability by law. All contracts are agreements; not all agreements are contracts.
- 2Nine essentials: offer + acceptance, intention for legal relations, lawful consideration, capacity, free consent, lawful object, not declared void, certainty, legal formalities.
- 3Offer must be communicated, certain, and distinct from invitation to offer. Acceptance must be absolute and unqualified.
- 4Postal Rule: acceptance complete against proposer when letter is posted (proposer bound); against acceptor when received by proposer.
- 5Consideration need not be adequate; may be past (India allows past consideration); may move from any person.
- 6Contract with minor is void ab initio — cannot be ratified; minor can be a beneficiary.
- 7Five vitiating factors: Coercion, Undue Influence, Fraud, Misrepresentation (all make contract voidable); Bilateral Mistake of Fact makes contract void.
- 8Fraud requires intent to deceive; Misrepresentation is an honest false statement.
- 9Agreements in restraint of trade, wagering agreements, agreements without consideration (subject to exceptions) are void.
- 10Six modes of discharge: performance, agreement, impossibility (Section 56), lapse of time, operation of law, breach.
- 11Remedies for breach: rescission, damages (Hadley v Baxendale rule), Section 74 damages, quantum meruit, specific performance, injunction.
Key Terms
Contract
An agreement enforceable by law — Section 2(h) of the Indian Contract Act, 1872.
Agreement
Every promise and every set of promises forming consideration for each other — Section 2(e).
Void Agreement
Agreement not enforceable by law from the beginning — Section 2(g).
Voidable Contract
Contract enforceable at the option of one party but not the other — caused by coercion, undue influence, fraud, or misrepresentation.
Offer / Proposal
Signifying willingness to do or abstain from doing something to obtain another's assent — Section 2(a).
Acceptance
Signifying assent to the proposal — must be absolute, unqualified, and communicated — Section 2(b).
Consideration
Something done, abstained from, or promised at the desire of the promisor — Section 2(d). The price for a promise.
Coercion
Committing or threatening to commit an act forbidden by IPC, or unlawfully detaining property, to cause agreement — Section 15.
Undue Influence
Using a position of dominance over another's will to obtain an unfair advantage — Section 16.
Fraud
Deliberate false statement or active concealment with intent to deceive and induce contract — Section 17.
Misrepresentation
Honest but false assertion of fact that induces the other party to enter into contract — Section 18.
Bilateral Mistake
Both parties mistaken about a fundamental fact — makes contract void under Section 20.
Novation
Substitution of a new contract for an old one — either changing parties or terms; old contract is discharged.
Frustration
Supervening impossibility after formation of contract; contract becomes void — Section 56.
Liquidated Damages
Pre-agreed compensation for breach; court awards reasonable compensation not exceeding this amount — Section 74.
Quantum Meruit
Claim for reasonable remuneration for work partially done before the contract was discharged by breach.
Specific Performance
Court order requiring a party to actually perform the contract; granted when damages are inadequate.
Invitation to Offer
An invitation to others to make offers — not an offer itself; e.g., price lists, advertisements, shop displays.