Offer and Acceptance under the Indian Contract Act, 1872
Offer and acceptance form the foundation of contractual agreement under the Indian Contract Act, 1872. The Act uses the expression “proposal” rather than “offer”, but the two expressions are commonly used interchangeably in legal education. A valid contract ordinarily begins when one person makes a lawful proposal and the person to whom it is made gives a valid acceptance.
The principal statutory provisions are found in Sections 2(a), 2(b) and 3 to 9 of the Indian Contract Act, 1872. Students must understand not only the definitions of proposal and acceptance but also communication, revocation, lapse, counter-offers, invitations to offer, general offers, acceptance by conduct and the special statutory rule determining when communication becomes complete.
Statutory Scheme at a Glance
| Provision | Subject |
|---|---|
| Section 2(a) | Definition of proposal |
| Section 2(b) | Acceptance and promise |
| Section 3 | Communication, acceptance and revocation of proposals |
| Section 4 | When communication is complete |
| Section 5 | Revocation of proposals and acceptances |
| Section 6 | Modes by which proposal is revoked |
| Section 7 | Acceptance must be absolute and in prescribed or reasonable manner |
| Section 8 | Acceptance by performance of conditions or receipt of consideration |
| Section 9 | Express and implied promises |
Meaning of Proposal under Section 2(a)
Section 2(a) provides, in substance, that when one person signifies to another a willingness to do or abstain from doing something with a view to obtaining the assent of that other person to the act or abstinence, the person is said to make a proposal.
A proposal therefore requires:
- a clear manifestation of willingness to do or abstain from doing something;
- communication of that willingness to another person; and
- an intention to obtain the other person’s assent.
The person making the proposal is commonly called the proposer or offeror. The person to whom it is made is the proposee or offeree.
Meaning of Acceptance under Section 2(b)
Under Section 2(b), when the person to whom the proposal is made signifies assent to it, the proposal is said to be accepted. Once accepted, the proposal becomes a promise.
This produces a simple conceptual sequence:
Proposal + Acceptance = Promise
However, every promise is not automatically an enforceable contract. The remaining requirements of Section 10—such as competency, free consent, lawful consideration and lawful object—must also be satisfied.
Essential Requirements of a Valid Offer
1. The Offer Must Be Communicated
A person cannot accept an offer of which he has no knowledge. Communication is therefore fundamental. Section 3 recognises communication of proposals through acts or omissions intended to communicate them or which have the effect of communicating them.
In Lalman Shukla v. Gauri Dutt, the plaintiff had already undertaken the act before learning of the reward offer. The case is commonly cited for the principle that knowledge of the offer is necessary before a person can accept it and claim the promised reward.
2. The Offer Must Be Certain and Definite
An offer must disclose sufficiently definite terms to permit acceptance. If the statement is vague, incomplete or merely exploratory, it may not amount to a legal proposal.
For example, a statement merely communicating the lowest price at which a person might consider selling property does not necessarily amount to an offer to sell. The classic illustration is Harvey v. Facey, where a response stating the lowest price was held not to constitute an offer capable of acceptance.
3. The Offer Must Be Intended to Obtain Assent
A proposal is different from a declaration of intention, preliminary negotiation or supply of information. The communication must be made with a view to securing the other party’s assent.
4. The Offer May Be Express or Implied
Section 9 recognises express and implied promises. An offer may therefore be communicated by words, whether spoken or written, or inferred from conduct and surrounding circumstances.
For example, operating a public transport service on stated terms may involve an implied offer to carry passengers who tender the required fare.
5. The Offer May Be Specific or General
A specific offer is made to a particular person or identifiable group and can ordinarily be accepted only by that person or group.
A general offer is made to the public at large and may be accepted by any person who, with knowledge of the offer, performs the stipulated conditions.
The leading illustration is Carlill v. Carbolic Smoke Ball Co., where an advertisement promising payment upon performance of specified conditions was treated as a general offer capable of acceptance by performance.
Offer and Invitation to Offer: Important Distinction
One of the most frequently examined questions in contract law is the distinction between an offer and an invitation to offer.
| Offer | Invitation to Offer |
|---|---|
| Expresses final willingness to contract on stated terms | Invites others to make offers |
| Acceptance may create a promise | Response usually constitutes the offer |
| Offeror may become bound upon valid acceptance | Inviting party remains free to accept or reject offers |
| Example: promise to sell a specific car for a stated price to a named person | Example: ordinary display of goods with price labels in a shop |
Display of Goods
As a general common-law rule, display of goods in a shop is usually an invitation to customers to make offers to purchase. The shopkeeper may then accept or reject the offer, subject to applicable statutory obligations. Pharmaceutical Society of Great Britain v. Boots Cash Chemists is the leading illustration.
Advertisements
Advertisements are often invitations to offer, particularly advertisements of goods for sale. However, an advertisement containing a clear promise to anyone who performs specified conditions may amount to a general offer, as illustrated by Carlill.
Auctions
An invitation to bid is generally an invitation to offer, while each bid constitutes an offer that may be accepted according to the applicable auction rules. The precise legal position may also depend upon statutory auction conditions and whether the sale is stated to be without reserve.
Communication of Proposal: Section 4
Under Section 4, communication of a proposal is complete when it comes to the knowledge of the person to whom it is made.
Thus, merely writing or dispatching a proposal does not necessarily complete its communication. The proposal must reach the offeree’s knowledge before it can ordinarily be accepted.
Communication of Acceptance: The Special Rule under Section 4
Section 4 creates an important distinction between the proposer and acceptor.
Communication of acceptance is complete:
- against the proposer, when the acceptance is put into a course of transmission to him so as to be out of the power of the acceptor; and
- against the acceptor, when the acceptance comes to the knowledge of the proposer.
This statutory rule is especially important for non-instantaneous modes of communication such as post.
Example of Section 4
A sends a proposal by post to B. B receives it and posts a letter of acceptance.
- As against A, the proposer, acceptance becomes complete when B posts the letter so that it is beyond B’s control.
- As against B, the acceptor, acceptance becomes complete when A receives and learns of the acceptance.
This distinction becomes important when considering revocation under Section 5.
Postal Acceptance and the Indian Contract Act
The common-law postal rule is often associated with Adams v. Lindsell. In India, however, students should primarily apply the express statutory language of Section 4. The Act itself determines when acceptance is complete against the proposer and against the acceptor.
The statutory rule should therefore be stated before relying on English cases.
Instantaneous Communications: Telephone and Similar Modes
Where parties communicate instantaneously or nearly instantaneously, the reasoning applicable to postal communication may not operate in exactly the same way. In Bhagwandas Goverdhandas Kedia v. Girdharilal Parshottamdas & Co., the Supreme Court considered a contract concluded through telephone communication and treated the place where acceptance was communicated and heard as legally significant.
The decision is frequently cited for the proposition that instantaneous communication requires actual receipt or communication of acceptance rather than mechanical application of the postal rule.
Acceptance Must Be Absolute: Section 7
Section 7 requires acceptance to be absolute and unqualified. A purported acceptance that changes the terms of the proposal is not a valid acceptance; it ordinarily amounts to a counter-offer.
In Hyde v. Wrench, an offer to sell property at one price was met by a lower counter-offer. The counter-offer rejected the original offer, and the original offer could not later be accepted unless renewed.
Counter-Offer versus Mere Inquiry
Students should distinguish a counter-offer from a request for information.
- A counter-offer proposes different terms and ordinarily rejects the original offer.
- A mere inquiry seeks clarification without necessarily rejecting the original offer.
Stevenson, Jacques & Co. v. McLean is commonly cited to illustrate that a request for information need not amount to a counter-offer.
Acceptance Must Be in Prescribed or Reasonable Manner
Section 7 also provides that acceptance must be expressed in a usual and reasonable manner unless the proposal prescribes a particular manner of acceptance.
If the proposer prescribes a manner and the acceptor uses another method, the proposer may insist, within a reasonable time, that acceptance be made in the prescribed manner. If the proposer does not insist, the acceptance may be treated as accepted in the manner actually used.
Silence Does Not Ordinarily Amount to Acceptance
An offeror cannot generally impose contractual liability by stating that silence will be treated as acceptance. Acceptance must be signified by the offeree through words, conduct or performance where legally sufficient.
Felthouse v. Bindley is the classic authority for the proposition that silence alone does not ordinarily amount to acceptance.
Acceptance by Conduct: Sections 8 and 9
Acceptance need not always be communicated by an express statement. Under Section 8, performance of the conditions of a proposal, or acceptance of consideration offered with a proposal for a reciprocal promise, may constitute acceptance.
Under Section 9, promises may be express or implied.
Thus, conduct can create contractual assent where the circumstances objectively demonstrate acceptance.
Brogden v. Metropolitan Railway Co. is often cited as an example of a contract inferred from conduct despite incomplete formal execution of a written document.
General Offers and Acceptance by Performance
Where an offer is made to the public at large and requests performance of a specified condition, performing that condition with knowledge of the offer may constitute acceptance under Section 8.
In such cases, separate advance notification of acceptance may not be required where the offer itself contemplates acceptance through performance.
Revocation of Proposal: Sections 5 and 6
Section 5 provides that a proposal may be revoked at any time before the communication of its acceptance is complete as against the proposer, but not afterwards.
Section 6 specifies the principal modes of revocation.
Modes of Revocation under Section 6
- Notice of revocation by the proposer to the other party.
- Lapse of prescribed time, or if no time is prescribed, lapse of a reasonable time without communication of acceptance.
- Failure to fulfil a condition precedent to acceptance.
- Death or insanity of proposer, if the fact comes to the knowledge of the acceptor before acceptance.
Revocation Must Be Communicated
As a general principle, withdrawal of an offer must be communicated to the offeree before acceptance becomes legally effective against the proposer.
Byrne v. Van Tienhoven is commonly cited for the proposition that posting a revocation is insufficient if the offeree has already accepted before receiving it.
Dickinson v. Dodds also illustrates that reliable knowledge that the offeror has disposed of the subject matter may prevent later acceptance, depending on the circumstances.
Revocation of Acceptance under Section 5
A distinctive feature of the Indian Contract Act is that an acceptance itself may be revoked before communication of the acceptance becomes complete as against the acceptor.
Because under Section 4 acceptance becomes complete against the acceptor only when it comes to the knowledge of the proposer, the acceptor may, in appropriate circumstances, revoke the acceptance if the revocation reaches the proposer before the acceptance does.
This statutory possibility should be clearly distinguished from the rule governing revocation of an offer.
Communication of Revocation: Section 4
Communication of revocation is complete:
- against the person who makes it, when it is put into a course of transmission to the person to whom it is made so as to be out of the power of the sender; and
- against the person to whom it is made, when it comes to that person’s knowledge.
This is another statutory distinction that frequently appears in examinations.
Lapse of an Offer
An offer may cease to remain open because of:
- revocation;
- rejection;
- counter-offer;
- expiry of stated time;
- expiry of reasonable time;
- failure of a condition precedent;
- death or insanity where Section 6 applies;
- change in law rendering the proposed transaction unlawful; or
- destruction of subject matter in circumstances making performance impossible before contract formation.
Ramsgate Victoria Hotel Co. v. Montefiore is commonly cited to illustrate lapse of an offer after an unreasonable period.
Standing Offers
A standing or continuing offer remains open for successive acceptances, typically in supply arrangements or tenders. Each order placed in accordance with the standing offer may constitute a separate acceptance giving rise to a separate contract.
The standing offer may generally be revoked prospectively before a particular acceptance, subject to contractual and statutory limitations.
Tenders: Offer or Invitation to Offer?
The legal character of a tender depends on the terms of the invitation and tender document.
Often:
- an invitation to submit tenders is an invitation to offer;
- the submitted tender is the offer; and
- acceptance of the tender creates the contract.
However, where a tender is accepted as a standing offer, individual purchase orders may constitute separate acceptances. Students should therefore analyse the terms rather than apply a single label mechanically.
Cross Offers
Cross offers occur when two parties, without knowledge of each other’s communication, make identical offers to one another. Mere coincidence of terms does not amount to acceptance because each communication is an offer rather than assent to the other’s offer.
Mutual knowledge and acceptance are required for agreement.
Electronic Offer and Acceptance
Modern contracts are frequently formed through email, websites, applications and electronic communications. The principles of proposal, acceptance, consent and contractual validity continue to apply. Indian law also recognises the validity of contracts formed through electronic means, subject to applicable statutory requirements.
For examination purposes, the central question remains whether the electronic communication objectively constitutes a definite proposal and whether valid acceptance was communicated in accordance with law.
Difference Between Offer, Acceptance and Promise
| Concept | Meaning | Relevant Provision |
|---|---|---|
| Proposal/Offer | Willingness communicated with a view to obtaining assent | Section 2(a) |
| Acceptance | Signification of assent by the person to whom proposal is made | Section 2(b) |
| Promise | A proposal when accepted | Section 2(b) |
Difference Between Revocation of Offer and Revocation of Acceptance
| Point | Offer | Acceptance |
|---|---|---|
| Provision | Section 5 | Section 5 |
| Latest time for revocation | Before acceptance is complete against proposer | Before acceptance is complete against acceptor |
| Relevant completion rule | Section 4 | Section 4 |
| Effect | Prevents formation through that offer | Withdraws previously dispatched acceptance if legally timely |
Important Cases at a Glance
| Case | Principle |
|---|---|
| Lalman Shukla v. Gauri Dutt | Knowledge of offer is necessary for acceptance |
| Carlill v. Carbolic Smoke Ball Co. | General offer; acceptance by performance |
| Harvey v. Facey | Statement of lowest price may be information, not an offer |
| Pharmaceutical Society v. Boots Cash Chemists | Display of goods generally an invitation to offer |
| Hyde v. Wrench | Counter-offer rejects original offer |
| Stevenson, Jacques & Co. v. McLean | Mere inquiry distinguished from counter-offer |
| Felthouse v. Bindley | Silence does not ordinarily constitute acceptance |
| Brogden v. Metropolitan Railway Co. | Acceptance may be inferred from conduct |
| Bhagwandas Goverdhandas Kedia v. Girdharilal Parshottamdas & Co. | Instantaneous communication and place of acceptance |
| Byrne v. Van Tienhoven | Revocation must reach offeree before acceptance |
| Ramsgate Victoria Hotel Co. v. Montefiore | Offer may lapse after unreasonable time |
Frequently Asked Examination Questions
- Define proposal and acceptance under Sections 2(a) and 2(b) of the Indian Contract Act, 1872.
- What are the essential requirements of a valid offer?
- Distinguish an offer from an invitation to offer.
- Explain the statutory rules on communication of proposal and acceptance under Section 4.
- When is acceptance complete against the proposer and against the acceptor?
- Explain revocation of proposal under Sections 5 and 6.
- Can an acceptance be revoked under Indian law?
- Why must acceptance be absolute and unqualified under Section 7?
- Distinguish a counter-offer from a mere inquiry.
- Can silence amount to acceptance?
- Explain acceptance by conduct under Section 8.
- Discuss general offers with reference to Carlill v. Carbolic Smoke Ball Co.
- Explain the significance of Lalman Shukla v. Gauri Dutt.
- Discuss the law governing instantaneous communication with reference to Bhagwandas Goverdhandas Kedia.
- What is a standing offer and how is it accepted?
5-Mark Answer: Offer and Acceptance
Under Section 2(a) of the Indian Contract Act, 1872, a proposal arises when one person signifies willingness to do or abstain from doing something with a view to obtaining another’s assent. Under Section 2(b), when the person to whom the proposal is made signifies assent, the proposal is accepted and becomes a promise. A valid offer must be communicated, certain and intended to obtain assent. Acceptance must be absolute and unqualified under Section 7 and may be express, implied or by performance under Sections 8 and 9. Sections 4 to 6 regulate completion of communication and revocation.
10-Mark Answer Structure
- Define proposal under Section 2(a).
- Define acceptance and promise under Section 2(b).
- Explain essential requirements of a valid offer.
- Distinguish offer from invitation to offer.
- Explain communication under Sections 3 and 4.
- Explain absolute acceptance under Section 7.
- Discuss acceptance by conduct under Section 8.
- Explain revocation under Sections 5 and 6.
- Add leading cases such as Lalman Shukla, Carlill, Hyde v. Wrench and Bhagwandas Kedia.
- Conclude by linking offer and acceptance to agreement and contractual formation.
One-Minute Revision Table
| Question | Answer |
|---|---|
| Proposal defined? | Section 2(a) |
| Acceptance defined? | Section 2(b) |
| Accepted proposal becomes? | Promise |
| Communication provisions? | Sections 3 and 4 |
| Revocation? | Sections 5 and 6 |
| Acceptance must be? | Absolute and unqualified |
| Relevant section? | Section 7 |
| Acceptance by performance? | Section 8 |
| Express and implied promises? | Section 9 |
| Knowledge of offer case? | Lalman Shukla v. Gauri Dutt |
| General offer case? | Carlill v. Carbolic Smoke Ball Co. |
| Counter-offer case? | Hyde v. Wrench |
| Silence as acceptance case? | Felthouse v. Bindley |
| Indian telephone acceptance case? | Bhagwandas Goverdhandas Kedia |
Conclusion
Offer and acceptance provide the legal mechanism by which agreement is formed. The Indian Contract Act, 1872 contains a detailed statutory framework governing proposal, communication, acceptance, revocation and implied assent. For examination purposes, the most important provisions are Sections 2(a), 2(b) and 3 to 9. A strong answer should combine the statutory text with distinctions such as offer versus invitation to offer, counter-offer versus inquiry, postal versus instantaneous communication, and acceptance by express words or conduct.
Academic note: This material is intended for legal education and examination preparation. Students should refer to the latest official statutory text and full judgments for authoritative study.