Acceptance is the unqualified assent by the offeree to all the terms of the offer (Section 2(b), Indian Contract Act 1872).
## Core concept
Acceptance converts a proposal into a binding contract. It must be given by the person to whom the offer is made (offeree) and must show unconditional agreement to the exact terms offered.
Key principles: - Acceptance must be unqualified — any variation becomes a counter-offer, not acceptance - Can be expressed (words/conduct) or implied (by conduct or silence in rare cases) - Must be communicated to the offeror — mere mental acceptance is insufficient - Acceptance becomes effective when it comes to the knowledge of the offeror (Section 4, ICA) - Can be withdrawn before it is communicated to the offeror; after communication, it cannot be revoked
## Formula / rule
Conditions for valid acceptance:
- By correct person – must be the offeree (or authorized agent)
- To correct person – must be communicated to the offeror
- Unconditional – "I accept but..." = counter-offer, not acceptance
- Within the mode prescribed – if offeror specifies acceptance method, follow it (Section 7, ICA)
- Within reasonable time – not after unreasonable delay (Section 2(b) note)
- Based on the same terms – acceptance must mirror the offer exactly
- With knowledge of the offer – offeree must know the offer exists
Timing rule (Section 4, ICA): - Acceptance becomes effective when it comes to the knowledge of the offeror, not when the offeree sends it - Example: Posted acceptance letter = effective when received and read, not when posted
## Common exam applications
Offer–acceptance scenarios:
- Conditional acceptance – "I accept if you reduce price by 10%" = counter-offer (not acceptance)
- Late acceptance – if accepted after reasonable time has elapsed, offeror can reject it (business context determines "reasonable")
- Silence as acceptance – generally NOT valid (Section 8, ICA), except in exceptional circumstances (prior dealing, trade custom)
- Acceptance by conduct – person requested to do something and does it = implied acceptance
- Cross-offers – if two identical offers cross in post, no contract forms (both remain offers)
Withdrawal of acceptance: - Can withdraw if done before or at same time as acceptance reaches offeror - Cannot withdraw after offeror knows of it
## Worked example
X offers to sell his car to Y for ₹5 lakhs by letter.
Y replies: "I accept your offer, but I will pay in two instalments instead of lump sum."
Analysis: This is NOT valid acceptance because Y has added a new term (payment mode). This is a counter-offer. If X accepts Y's modified terms, a contract forms on the new terms.
Now if Y had simply written: "I accept your offer for ₹5 lakhs" → valid acceptance when X reads it.
## Common mistakes
- Thinking silence = acceptance — No. Silence does not amount to acceptance unless prior course of dealing suggests otherwise (Section 8, ICA)
- Confusing "receipt" with "knowledge" — Acceptance is effective when offeror *knows* of it, not just receives mail
- Conditional acceptance as valid — Any qualification ("if," "provided," "but") makes it a counter-offer
- Acceptance after offer lapses — If offer withdrawn or reasonable time has passed, late acceptance is ineffective
- Acceptance by wrong mode — If offeror specifies mail acceptance, acceptance by phone may be invalid
Exam tip: Always check whether the offeree has added, deleted, or modified any term. Even minor changes = counter-offer, not acceptance.