The Postal Rule of Acceptance under Section 4 of the Indian Contract Act, 1872: Its Origin, the Indian Departure from English Law, and Its Limits

The postal rule is the proposition that a posted acceptance takes effect when it is put into the post and not when it arrives. It is an exception to the general principle that a communication has no effect until received, and it exists because someone has to bear the risk of delay and loss in the interval between despatch and delivery. English law made that choice in 1818 and placed the risk on the offeror. Section 4 of the Indian Contract Act adopts the rule but splits it, so that a posted acceptance binds the proposer at once while leaving the acceptor free until it arrives. That split is the single most distinctive feature of Indian law on formation.

1. Origin of the Rule

1.1 The risk allocation

2. The Indian Rule in Section 4

The Indian draftsman did not simply enact Adams v. Lindsell. He divided the moment of completion between the two parties, and read with Section 5 this produces a materially different position from the English one.

2.1 The window in which one party is bound and the other is not

The consequence of the split is a defined period during which the contract binds one side only. It begins the moment the acceptor puts his acceptance out of his power, and it ends when the acceptance comes to the proposer's knowledge. During that period the proposer cannot revoke his proposal, because Section 5 forbids it once communication is complete as against him; but the acceptor may revoke his acceptance, because communication is not yet complete as against him. A speedier means of revocation, such as a telegram or an email overtaking a posted letter, will therefore defeat the acceptance if it arrives first or at the same time.

Where India departs from the English postal rule, and where the rule does not reach

3. Conditions for the Rule to Apply

1. Post must be a contemplated or reasonable means of communication. Where the offer was made by post, or the circumstances show that a postal reply was expected, the rule applies. Where the offer required an answer by some other means, or by a method inconsistent with post, it does not.
2. The acceptance must be properly addressed, stamped and posted. A letter wrongly addressed through the acceptor's own fault has not been put in a course of transmission in the sense the section contemplates, and the acceptor cannot take advantage of his own error.
3. The acceptance must be out of the acceptor's power. Handing a letter to one's own employee for posting is not enough; the acceptance must have passed beyond the acceptor's control.
4. The offeror must not have excluded the rule. An offer stipulating that acceptance will take effect only on actual receipt, or requiring notice in writing to reach the offeror by a stated date, displaces the rule. Section 7(2) permits the proposer to prescribe the manner of acceptance, and a stipulation of this kind is an exercise of that power.
5. The medium must not be instantaneous. Where despatch and receipt are effectively simultaneous, the rule has no work to do.

4. Where the Rule Does Not Apply

4.1 Revocation

The rule is confined to acceptance. A revocation takes effect only on receipt, as both the third paragraph of Section 4 and Byrne & Co. v. Leon Van Tienhoven & Co., (1880) 5 CPD 344 establish. The asymmetry is deliberate: a revocation is an attempt to undo an expectation the offeror himself created, and it is right that the burden of communicating it should fall on him.

4.2 Instantaneous communication

Where the parties are in direct contact there is no interval and the general principle applies, so the acceptance is effective on receipt and the contract is made where it is received. This was decided for telex in Entores Ltd. v. Miles Far East Corporation, [1955] 2 QB 327 and for telephone in India in Bhagwandas Goverdhandas Kedia v. Girdharilal Parshottamdas & Co., AIR 1966 SC 543, where the majority held that Sections 3 and 4 were framed with post and telegraph in mind and do not govern instantaneous communication.

4.3 Electronic communication

Email and messaging are not addressed by Section 4, and the answer is supplied by Section 13 of the Information Technology Act, 2000. Despatch occurs when the record enters a computer resource outside the originator's control, and receipt occurs when it enters the addressee's designated computer resource. Section 13 further deems an electronic record to be despatched at the originator's place of business and received at the addressee's place of business, whatever the location of the servers. The practical effect is closer to the receipt rule than to the postal rule.

5. Why the Rule Is Defended and Criticised

• In its favour: it prevents the infinite regress identified in Adams v. Lindsell; it gives the acceptor certainty at the moment he acts, so that he may begin performance; and it places the risk on the offeror, who selected or contemplated the medium and could have stipulated otherwise.
• Against it: it can bind an offeror who never learns of the acceptance and who has in the meantime dealt elsewhere in good faith, as happened in Household Fire Insurance v. Grant; the notion of the post office as the common agent of both parties is a fiction; and the rule has steadily lost territory as communication has become faster, so that it now governs only a small part of commercial practice.

6. The Position Stated Shortly

1. The postal rule originates in Adams v. Lindsell and makes a posted acceptance effective on posting.
2. Household Fire Insurance v. Grant: the acceptance binds the offeror even if the letter is lost and never arrives.
3. Section 4 adopts the rule but splits it, binding the proposer on despatch and the acceptor only on the proposer's knowledge.
4. Read with Section 5, this gives the acceptor a window in which he may revoke while the proposer may not, provided the revocation reaches the proposer no later than the acceptance.
5. The rule applies only where post is a contemplated means, the letter is properly addressed and out of the acceptor's power, and the offeror has not excluded it.
6. The rule does not apply to revocation, which takes effect on receipt under the third paragraph of Section 4 and Byrne v. Van Tienhoven.
7. The rule does not apply to instantaneous communication, per Entores and Bhagwandas Kedia.
8. Electronic communication is governed by Section 13 of the Information Technology Act, 2000, which operates closer to a receipt rule and fixes the place at the parties' places of business.

7. Related Topics and Provisions