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Meaning of invitation to offer
An invitation to offer, also called an invitation to treat, is a preliminary communication that encourages offers or further negotiation.
The Indian Contract Act, 1872 does not separately define the expression. The distinction follows from Section 2(a). A proposal must signify willingness to do or abstain from doing something with a view to obtaining the other person's assent. If the maker still intends to approve the transaction after the other person responds, the first communication is normally an invitation rather than a proposal.
Invitation to offer, followed by an offer, followed by acceptance. A contract arises only after the offer is validly accepted and the remaining legal requirements are satisfied.
The label used by a business or party is relevant but not conclusive. A document called an offer may remain subject to approval. A communication called a notice may contain a complete promise capable of acceptance. Courts examine the words, setting and allocation of final decision-making power.
The legal test
Use these questions in sequence:
- Are the essential terms settled? Uncertain quantity, price, subject matter or approval may show that negotiation is incomplete.
- Would a simple yes bind the maker? If the maker can still choose whether to proceed, the communication is usually an invitation.
- Who controls acceptance? The party retaining the final power to approve or reject is generally responding to an offer, not making it.
- What does the stated process require? Checkout approval, dispatch, tender sanction or auction confirmation may identify the actual acceptance event.
- What would the commercial consequences be? Courts avoid a classification that would create unlimited or unintended contractual liability.
The central question is objective intention. The private, unexpressed state of mind of the maker is less important than what a reasonable recipient would understand from the communication and its context.
Common situations
| Situation | Usual classification | Contract sequence |
|---|---|---|
| Goods on a shelf or in a window | Invitation to offer | The customer offers to buy. The seller accepts at checkout. |
| Ordinary advertisement | Invitation to offer | The customer places an order, which the advertiser may accept. |
| Price list or catalogue | Usually an invitation | The buyer orders on stated terms, subject to the seller's acceptance. |
| Quotation | Often information or invitation | A later communication must show a definite offer and acceptance. |
| Notice inviting tenders | Usually an invitation | Each submitted tender is an offer. The authority accepts one under the stated process. |
| Auction notice | Usually an invitation | Each bid is an offer. Acceptance may require the fall of the hammer or later confirmation. |
These are presumptions, not automatic rules. Exact wording can change the result. A seller may make a definite limited offer, and a tender invitation may contain a separate binding promise to follow a stated evaluation process.
Tenders and auctions
Tenders
A notice inviting tenders usually asks contractors or suppliers to submit offers. The authority does not ordinarily promise to accept the lowest or any tender merely by issuing the notice. A bidder's tender is the offer, and a contract forms only when the competent authority accepts it in the manner required by the tender conditions.
An accepted tender may create an immediate contract for a fixed quantity, or it may create a standing offer. Under a standing offer, later purchase orders ordinarily create separate contracts for the quantities ordered. The tender document, letter of acceptance and each order must therefore be kept distinct.
Public tenders also involve administrative law duties of fairness and non-arbitrariness. Those duties regulate the decision-making process, but they do not automatically turn every bid into a concluded contract. Contract formation still depends on the stated conditions and valid acceptance.
Auctions
A notice announcing an auction ordinarily invites bids. Each bid is an offer. In a simple auction, acceptance commonly occurs on the fall of the hammer or another announced act. Government and institutional auctions often add a confirmation requirement, reserve price or power to reject the highest bid.
Where confirmation by a named authority is a condition, the auctioneer's provisional acceptance does not complete the contract. The bidder cannot rely only on being the highest bidder. The authority's confirmation and its communication must be examined under the auction rules.
Online product listings and orders
An online listing is commonly treated like a shop display. The customer submits an order, which operates as the offer. The seller's terms then identify whether acceptance occurs on payment, order confirmation, dispatch or delivery. An automated acknowledgment may only confirm receipt of the order.
This structure allows a seller to check stock, delivery limits, age or legal restrictions, payment verification and obvious pricing errors before accepting. It does not give a seller unlimited freedom after a contract has formed. The wording shown before purchase, the sequence of emails and the seller's conduct must all be examined.
Payment deduction alone does not answer the formation question. Read the order terms and identify the communication or conduct designated as acceptance.
Quotations, letters of intent and negotiations
A quotation may simply answer a question about price. It becomes an offer only when the complete communication shows willingness to supply identified goods or services on settled terms without further approval. Quantity, delivery, validity period and language such as "subject to confirmation" can change the result.
A letter of intent usually records an intention to enter a fuller contract in the future. It is not automatically the final contract. However, some letters authorise limited work, impose confidentiality duties or contain terms intended to operate immediately. Each clause must be classified separately instead of treating the document's title as decisive.
In Dresser Rand S.A. v Bindal Agro Chem Ltd., the Supreme Court stressed that an invitation to bid and agreement on terms that would govern a future contract were not the same as entering that contract. The contemplated purchase order was never issued, so the preliminary documents did not establish the asserted arbitration agreement.
Offer and invitation to offer compared
| Point | Offer | Invitation to offer |
|---|---|---|
| Purpose | To obtain assent to settled terms. | To invite offers or negotiation. |
| Legal effect of assent | Valid assent may convert it into a promise under Section 2(b). | A response usually creates the offer, not the contract. |
| Final control | The offeree holds the power of acceptance. | The inviter normally retains power to accept or reject. |
| Certainty | Terms must be sufficiently certain for acceptance. | Details may remain open for selection, verification or approval. |
| Example | A definite reward promise to the public. | A normal shelf display with a price tag. |
When an apparent invitation may be an offer
Form does not control substance. An advertisement can be a general offer when it states a definite promise, identifies the condition for earning it and objectively shows that no further approval is required. A reward notice is the common example.
A tender invitation may also contain a distinct process promise. If the inviter expressly undertakes to accept the highest or lowest conforming bid, or promises to consider every timely conforming tender, that undertaking may itself have contractual significance. The exact tender terms remain decisive.
Limited stock and specified modes of acceptance can support an offer where the wording shows immediate commitment. Courts still ask whether the maker intended to be bound without a further act of approval.
Worked problems
Wrong shelf price
A customer takes a television marked Rs 5,000 to the cashier. The intended price is Rs 50,000. A normal shelf display is an invitation, so presenting the item is the customer's offer. The store may reject it before acceptance.
Automated order email
A website states that acceptance occurs on dispatch. Its first email says only, "We received your order." The listing is likely an invitation, the order is the offer and the first email is not yet acceptance.
Highest auction bid
The auction conditions make every bid subject to government confirmation. Being the highest bidder does not create a concluded contract until the competent authority gives the required confirmation.
Definite reward
A notice promises Rs 20,000 to anyone who returns a named file by Friday. It may be a general offer because performance by a person with knowledge of the notice requires no further selection by the maker.
Landmark cases
Bank of India v O.P. Swarnakar
(2003) 2 SCC 721
Facts: Nationalised banks issued voluntary retirement schemes but retained discretion to accept or reject employee applications.
Rule: The Supreme Court treated the schemes as invitations to treat. Employee applications were offers, and enforceable contracts arose only on acceptance by the bank.
Read Supreme Court judgmentPharmaceutical Society v Boots Cash Chemists
[1953] EWCA Civ 6; [1953] 1 QB 401
Rule: Goods on self-service shelves were invitations to treat. The customer made the offer at the cashier, where the seller could supervise and accept the transaction.
Read judgmentHarvey v Facey
[1893] AC 552
Rule: A telegram stating the lowest price supplied information. It did not state a final willingness to sell and therefore was not an offer capable of acceptance.
Read judgmentCarlill v Carbolic Smoke Ball Co.
[1892] EWCA Civ 1; [1893] 1 QB 256
Rule: A definite advertisement backed by conduct showing seriousness was a general offer, accepted through performance of its stated condition. It is the standard exception to the usual advertisement rule.
Read judgmentHaridwar Singh v Bagun Sumbrui
AIR 1972 SC 1242; (1973) 3 SCC 889
Rule: Acceptance of an auction bid subject to government confirmation did not create a concluded contract without that confirmation. The case shows why auction conditions must be read before locating acceptance.
Read judgmentDresser Rand S.A. v Bindal Agro Chem Ltd.
(2006) 1 SCC 751
Rule: An invitation to bid and preliminary agreement on terms for a contemplated purchase did not by themselves create the final contract. A letter of intent normally indicates a future contractual intention unless its words and context show present binding obligations.
Read judgmentExam answer structure
- Define proposal under Section 2(a).
- Explain that invitation to offer is a preliminary communication.
- Identify who retains the final power to accept or reject.
- Apply the rule for the specific setting: display, ad, website, tender or auction.
- Use one matching case and one contrasting case where useful.
- State the exact communication, if any, that formed the contract.
Frequently asked questions
What is an invitation to offer?
It is a communication inviting another person to make an offer. The person issuing the invitation ordinarily retains the power to accept or reject the offer received.
What is the difference between invitation to offer and invitation to treat?
There is no substantive difference. Invitation to treat is the traditional common law term, while invitation to offer is widely used in Indian legal education.
Is a price tag an offer?
Usually no. A display with a price normally invites the customer to offer to buy. The seller may accept or reject that offer at the point of sale.
Are all advertisements invitations to offer?
No. Most advertisements are invitations, but a definite promise to the public may be a general offer if it shows an intention to be bound upon performance.
Is the highest bidder automatically entitled to an auctioned property?
Not necessarily. The auction terms may reserve confirmation or rejection to a competent authority. No concluded contract arises until the required acceptance occurs.