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Acceptance is the second essential element in the formation of a contract. An offer by itself does not create a binding contract; it is the acceptance of the offer by the person to whom it is made that converts the proposal into a promise. Under Section 2(b) of the Indian Contract Act, 1872, acceptance means the assent given by the offeree to the proposal. For acceptance to be valid, it must generally be absolute, unqualified, and communicated in the prescribed or reasonable manner. Acceptance may be express, implied, or by conduct, depending upon the circumstances of the case.

Meaning and Definition of Acceptance

Section 2(b) of the Indian Contract Act, 1872 defines acceptance as:

“When the person to whom the proposal is made signifies his assent thereto, the proposal is said to be accepted. A proposal, when accepted, becomes a promise.”

In simple words, acceptance means giving assent to the proposal made by the offeror. Upon acceptance, the proposer becomes the promisor, and the offeree becomes the promisee.

  • Example: A offers to sell his car to B for ₹2,00,000. B agrees to buy the car for ₹2,00,000. B has accepted A’s proposal, turning it into a legally binding promise.

Relationship between Offer and Acceptance

Offer and acceptance are closely connected. An offer expresses the willingness of one party to enter into a contract, while acceptance signifies the willingness of the other party to agree to that offer.

Sir William Anson compared acceptance to “a lighted match to a train of gunpowder.” The comparison highlights the importance of acceptance; an offer by itself does not create a binding contractual relationship. It is acceptance that transforms the offer into a promise. Thus, Offer with Valid Acceptance constitutes Promise; an offer can be revoked or may lapse at any time before valid acceptance occurs.

However, acceptance must satisfy the legal requirements prescribed under the Indian Contract Act. A purported acceptance that introduces new terms, is conditional, or is otherwise inconsistent with the original offer may not amount to valid acceptance.

Modes of Acceptance

Acceptance may generally be made in the following ways:

1. Express Acceptance (Section 9)

Acceptance is express when it is communicated through spoken or written words. (e.g., A emails B accepting an offer to purchase a laptop for ₹50,000).

2. Implied Acceptance (Section 9)

Acceptance is implied when it is inferred from the conduct or behaviour of the parties rather than from express words. (e.g., Boarding a public bus impliedly accepts the offer of carriage for the standard fare).

3. Acceptance by Performance / Conduct (Section 8)

Section 8 provides that performing the conditions of a proposal constitutes acceptance without needing formal spoken or written assent.

  • Example: Performing the required acts specified in a general reward advertisement (e.g., finding and returning a lost item).

Thus, in certain cases, performance itself may amount to acceptance, without the need for a separate promise.

Characteristics / Rules of Valid Acceptance

For acceptance to be legally valid, the following rules should be satisfied:

1. Acceptance must be given by the person to whom the offer is made

In the case of a specific offer, only the person to whom the offer is addressed can accept it.

  • Case: Boulton v. Jones (1857) - Jones placed an order with Brocklehurst. Boulton, who had just bought Brocklehurst’s business, supplied the goods without informing Jones. Jones refused to pay. The Court held that no contract existed because Jones made the offer specifically to Brocklehurst, not Boulton.

In contrast, a general offer may be accepted by any person who has knowledge of the offer and fulfils its conditions (Carlill v. Carbolic Smoke Ball Co.)

2. Acceptance must be absolute and unqualified

Section 7 provides that acceptance must be absolute and unqualified. The offeree must accept the offer exactly as it is made, without introducing new conditions or modifications. Any modification acts as a counter-offer, which destroys the original offer.

  • Case: Hyde v. Wrench (1840) - Wrench offered to sell a farm to Hyde for £1,000. Hyde offered £950 instead (counter-offer). Wrench rejected the £950 offer. Hyde subsequently agreed to pay £1,000, but Wrench refused to sell. The court held that Hyde’s counter-offer had terminated the original offer. Therefore, his subsequent attempt to accept the original offer did not create a contract.

Example:
A offers to sell his car to B for ₹2,00,000. B replies, “I will purchase the car for ₹2,00,000 if you also buy my motorcycle for ₹50,000.” This is not acceptance. It is a counter-proposal because B has introduced an additional condition.

Similarly, if A offers to sell his house to B for ₹1,00,000 and B replies that he will purchase it for ₹80,000, B has not accepted the offer. He has made a counter-offer.

3. Acceptance must be certain and unequivocal

The acceptance must clearly show that the offeree agrees to the offer. It should not be vague, doubtful or provisional.

  • In Kilburn Engineering Ltd. v. ONGC Ltd., it was emphasised that offer and acceptance must be based on certainty, commitment and communication. If the necessary certainty is absent, no valid contract arises.

Thus, acceptance should clearly indicate the offeree’s intention to be bound by the terms of the offer.

4. Acceptance must be made in the prescribed manner

Under Section 7, where the offeror prescribes a particular manner of acceptance (e.g., via email or registered post), the offeree should ordinarily follow that manner. Where no particular manner is prescribed, acceptance should be made in a usual and reasonable manner. However, merely departing from the prescribed mode does not necessarily make the acceptance invalid. If the offeror does not object within a reasonable time, the acceptance may be treated as valid.

Under Section 7(2), if the offeror prescribes a mode and the acceptance is not made in that mode, the offeror must, within a reasonable time after acceptance is communicated, insist that the proposal be accepted in the prescribed manner. If the offeror fails to do so, he accepts the deviated acceptance and a valid contract comes into existence.

Example:
A requires B to accept an offer through a messenger. B instead sends his acceptance by email. If A promptly objects to the mode of acceptance, B cannot rely upon it as acceptance in the prescribed manner. If A does not object and acts upon the acceptance, the circumstances may indicate consent to the different mode.

5. Acceptance must be made within the prescribed or reasonable time

Acceptance must be made within the time specified in the offer. Where no time is specified, acceptance must take place within a reasonable time, depending upon the facts and circumstances of each case. (e.g., perishable goods require faster acceptance than real estate). An acceptance made after the offer has ceased to remain open cannot ordinarily create a contract.

6. Mere mental acceptance is not sufficient

A person cannot ordinarily accept an offer merely by forming an intention in his mind to accept it. There must be an outward manifestation of assent in an appropriate form.

  • Case: Brogden v. Metropolitan Railway Co. (1877) - Brogden sent a draft agreement to the railway company. The company’s manager marked it “Approved” and placed it in his drawer, intending that it should later be formally dealt with. The approval was not communicated. The court held that the conduct at that stage did not by itself complete the agreement (though subsequent performance later established a contract).

Thus, mere mental assent is insufficient; acceptance must be manifested through appropriate words or conduct.

7. Mere silence does not ordinarily amount to acceptance

An offeror cannot generally impose a condition that failure to reply will be treated as acceptance.

  • Case: Felthouse v. Bindley (1862) - An uncle offered to purchase his nephew’s horse and stated that if he heard nothing further, he would consider the horse to be his. The nephew did not communicate his acceptance to the uncle. The court held that there was no valid acceptance, as the nephew had not communicated his assent.

Thus, an offeree is not generally required to communicate rejection merely because the offeror says that silence will amount to acceptance.

Exception (Silence Coupled with Conduct): While mere mental assent or silence is insufficient, silence combined with the offeree’s conduct, past dealings, or receipt of services/goods without objection can constitute implied acceptance.

  • Case: Bhagwati Prasad Pawan Kumar v. Union of India (2006) 5 SCC 311: The Supreme Court held that where an offeree receives a conditional offer and retains the benefits/goods sent under it without protest, acceptance will be implied by conduct under Section 8, and the offeree cannot later claim silence as a defence.

8. Acceptance must correspond with the offer

The acceptance must be of the whole offer and must correspond with its terms. A person cannot accept only those parts of an offer which are favourable to him while rejecting or modifying the remaining terms.

9. A mere inquiry is not necessarily a counter-offer

A distinction must be made between asking for clarification and introducing a new term. If B merely asks A whether A would be willing to reduce the price, without rejecting the original offer, the inquiry by itself does not necessarily amount to a counter-offer. But if B states that he will purchase only at the reduced price, it amounts to a counter-proposal.

10. Provisional acceptance does not ordinarily constitute final acceptance

Where acceptance is expressly made subject to final approval or confirmation, it is generally provisional and does not create a final binding contract until the required approval is obtained.

  • Case: Union of India v. S. Narain Singh (1953) - Where the acceptance of a bid was expressly subject to confirmation by the competent authority, the provisional acceptance did not by itself constitute final acceptance.

A tender for the supply of goods is generally a standing offer. Accepting a tender creates a provisional acceptance; a binding contract arises only when a specific order for goods is placed against that tender.

Acceptance and Counter-Proposal

A counter-proposal arises when the offeree, instead of accepting the offer as it stands, proposes different or additional terms.

For example:

A: “I will sell my land to B for ₹10 lakhs.”

B: “I will buy it for ₹8 lakhs.”

B has not accepted A’s offer. B has made a counter-offer. The original offer is thereby rejected and cannot ordinarily be accepted later unless it is renewed by the original offeror. The principle was clearly established in Hyde v. Wrench (1840).

Acceptance by Conduct under Section 8

Section 8 provides that, “The performance of the conditions of a proposal, constitutes an acceptance of the proposal.” Therefore, acceptance does not always have to be expressed through words. Where the offer itself contemplates acceptance through performance, carrying out the required act is sufficient.

Example:
A offers ₹10,000 to anyone who returns his lost dog. B finds the dog and returns it to A. B has accepted the offer through performance.

This is particularly important in general offers, where the offeror may invite acceptance by performing a specified act.

Conclusion

For a proposal to mature into an enforceable promise under Section 2(b) of the Indian Contract Act, 1872, acceptance must be absolute, unqualified, communicated, and aligned with the prescribed mode and timeframe. Whether conveyed expressly, through conduct under Section 8, or digitally under the IT Act, 2000, acceptance represents the point of no return; turning an open offer into a binding legal obligation.