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CLAT 2027 Mirror Rule of Acceptance and Consideration Under Contract Law Notes

The mirror rule of acceptance requires the offeree to accept an offer exactly as it is made. Adding a condition, changing the price or modifying any term creates a counter-offer rather than a valid acceptance. Understanding these principles can help CLAT aspirants answer questions related to contract formation and legal reasoning with PW.
authorImageMehjabeen Hussain9 Nov, 2026
CLAT

The mirror rule of acceptance and consideration are important concepts under Contract Law. The mirror rule explains why acceptance must match the original offer without adding or changing any terms, while consideration deals with what is given in return for a promise. Questions on these concepts may test the difference between valid acceptance and a counter-offer, the legal effect of changing an offer and the person from whom consideration can move.

Physics Wallah's CLAT Online Batches 2027 include live classes, study materials, mock tests, practice questions and mentorship to help you understand these legal principles. Use the study materials to revise important provisions of the Indian Contract Act, 1872, and practise applying concepts such as acceptance, counter-offers and consideration to legal reasoning questions.

What Is the Mirror Rule of Acceptance?

The mirror rule of acceptance means that acceptance must match the original offer without introducing changes, additional conditions or qualifications.

Under Section 7 of the Indian Contract Act, 1872, acceptance must be absolute and unqualified. This means that the person receiving the offer must agree to its terms as they are.

For example:

  • A offers to sell a laptop to B for Rs. 40,000.

  • B agrees to purchase the laptop for Rs. 40,000 without adding any conditions.

  • This amounts to valid acceptance, provided the other legal requirements are satisfied.

However, if B agrees to purchase the laptop for Rs. 40,000 only if A provides free delivery, B has changed the original terms. This response is not valid acceptance under the mirror rule.

Memory Tip: Acceptance should reflect the original offer like a mirror. If you change the terms, you are making a new offer.

A counter-offer occurs when the person receiving an offer proposes different terms instead of accepting the original offer without changes.

A counter-offer is not the same as acceptance because it changes the original proposal. It has two important legal effects:

  1. Rejects the Original Offer: By proposing different terms, the offeree does not accept the original offer as made.

  2. Creates a New Offer: The counter-offer becomes a fresh proposal that the original offeror can accept or reject.

For example, A offers to sell a bicycle to B for Rs. 10,000. B responds that they will purchase it for Rs. 8,000. This is a counter-offer, not acceptance.

A contract will be formed only if A accepts B's new proposal and the other legal requirements are fulfilled.

Valid Acceptance vs Counter-Offer

The difference between valid acceptance and a counter-offer depends on whether the original terms have been changed.

  1. Valid Acceptance: The offeree agrees to the original terms without making any changes.

  2. Conditional Acceptance: The offeree agrees only if an additional condition is fulfilled. This becomes a counter-offer.

  3. Change in Price: If the offeree proposes a different price, the response becomes a counter-offer.

  4. Modification of Terms: If the offeree changes any term of the original proposal, the response is generally treated as a counter-offer.

The important point is that acceptance must be unconditional. If the offeree changes the bargain, the response becomes a new proposal rather than acceptance of the original offer.

What Is Consideration Under Contract Law?

Consideration is something of value given in return for a promise. It is an essential element of a valid contract under Indian Contract Law, subject to the exceptions recognised by the Indian Contract Act, 1872.

Under Section 2(d) of the Indian Contract Act, 1872, consideration may move from the promisee or any other person.

This means that the person providing consideration does not necessarily have to be the person receiving the promise.

For example:

  • A promises to sell a laptop to B for Rs. 40,000.

  • B's father pays A Rs. 40,000 for the laptop.

  • B receives the laptop, even though the payment is made by B's father.

In this situation, consideration is provided by a person other than the promisee. Indian Contract Law recognises this possibility.

Who Can Provide Consideration?

An important question in contract law is whether consideration must come only from the promisee or whether another person can also provide it.

Consider these three options:

  • Option A: Only the promisee can provide consideration.

  • Option B: Any other person can provide consideration.

  • Option C: Either the promisee or another person can provide consideration.

Correct Answer: Option C

Under Section 2(d) of the Indian Contract Act, 1872, consideration may move from the promisee or any other person. Therefore, both the promisee and a third person can provide consideration.

However, it is important to distinguish between consideration and the right to enforce a contract. The fact that another person can provide consideration does not automatically mean that every person connected with the transaction can sue under the contract. The principle of privity of contract is a separate legal concept.

Key Points to Remember

For CLAT preparation, remember these important principles:

  1. Mirror Rule: Acceptance must match the original offer without changing its terms.

  2. Section 7: Acceptance must be absolute and unqualified.

  3. Counter-Offer: A response that changes the original terms is treated as a new offer.

  4. Legal Effect: A counter-offer rejects the original offer and requires acceptance by the original offeror.

  5. Consideration: It refers to something given in return for a promise.

  6. Section 2(d): Consideration may move from the promisee or any other person.

  7. Privity of Contract: The rule regarding who can provide consideration is different from the rule regarding who can enforce a contract.

Understanding concepts such as the mirror rule of acceptance, counter-offers and consideration requires clarity on legal principles and regular question practice. Physics Wallah's CLAT Online Batches 2027 offer live classes where students can learn important concepts of Contract Law and clarify their doubts. Mock tests and practice questions help aspirants apply these principles to legal reasoning passages, while study materials support revision of important sections of the Indian Contract Act, 1872. Students can also benefit from mentorship to identify areas that need improvement and work towards better performance in CLAT 2027.

CLAT 2027 FAQs

What is the mirror rule of acceptance?

The mirror rule of acceptance states that acceptance must match the original offer without adding, removing or changing its terms. Under Section 7 of the Indian Contract Act, 1872, acceptance must be absolute and unqualified.

What happens if acceptance includes a new condition?

If the offeree introduces a new condition or changes the original terms, the response becomes a counter-offer rather than valid acceptance. The original offeror can accept or reject this new proposal.

Is a counter-offer the same as acceptance?

No. Acceptance agrees to the original offer, whereas a counter-offer changes its terms. A counter-offer is treated as a new proposal and requires acceptance by the other party.
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