Business Laws and Ethics · Indian Contracts Act, 1872

Free Consent and Legality of Object under the Contract Act

Updated 10 October 2026 · Fact-checked

Free consent means consent not caused by coercion, undue influence, fraud, misrepresentation or mistake (Section 14). If consent is caused by the first four, the contract is voidable at the option of the affected party. A bilateral mistake of fact makes the agreement void. An unlawful consideration or object makes the agreement void (Section 23).

Understand Free Consent and Legality of Object

A contract needs two things beyond an offer and acceptance: the parties must agree freely, and what they agree on must be lawful. Section 10 says agreements are contracts if made by the free consent of competent parties, for a lawful consideration and with a lawful object, and not expressly declared void.

Section 14 says consent is free when it is not caused by coercion, undue influence, fraud, misrepresentation or mistake. Consent is 'caused' by these when it would not have been given but for them. This 'but for' test is your anchor. If the party would have signed anyway, the flaw did not cause the consent (see the Explanation to Section 19).

The first four defects make the contract voidable. It is valid until the injured party chooses to cancel it. Section 19 covers coercion, fraud and misrepresentation. Section 19A covers undue influence, and lets the court set the contract aside absolutely or on just terms if the injured party has received a benefit. Mistake works differently. Under Sections 20 to 22, a mistake of fact common to both parties on an essential matter makes the agreement void. A mistake of law in India does not make it void, and a mistake by only one party does not make it voidable.

Section 23 deals with legality. The consideration or object is unlawful if it is forbidden by law, would defeat a law, is fraudulent, involves injury to the person or property of another, or the court regards it as immoral or opposed to public policy. Every agreement with an unlawful object or consideration is void, meaning it cannot be enforced at all. This is the key contrast: voidable can be saved by the injured party, void cannot.

Key rules to remember

Free consent (Section 14): Consent is free if NOT caused by coercion, undue influence, fraud, misrepresentation or mistake; 'Caused' means the consent would not have been given but for the defect.
Effect of coercion, fraud, misrepresentation (Section 19): Contract is voidable at the option of the party whose consent was so caused; For fraud or misrepresentation, that party may instead insist on performance and be put in the position as if the representation were true.
Effect of undue influence (Section 19A): Contract is voidable; court may set aside absolutely or on just terms if a benefit was received; Always cite 19A for undue influence, not Section 19.
Undue influence (Section 16): Position to dominate the will + use of it to obtain an unfair advantage; Dominance is presumed for real or apparent authority, fiduciary relation, or a person whose mental capacity is affected by age, illness or distress. If the deal looks unconscionable, the burden of proof is on the dominant party.
Exception to Section 19: Not voidable for misrepresentation or fraudulent silence if the party had means of discovering the truth with ordinary diligence; Illustration (b): the buyer checked the accounts, so the contract stands.
Mistake (Sections 20 to 22): Bilateral mistake of fact essential to the agreement: void. Mistake of law in India: no effect. Unilateral mistake: not voidable on that ground alone; Know the three-way split and apply it.
Unlawful object (Section 23): Forbidden by law / defeats a law / fraudulent / injury to person or property / immoral or opposed to public policy: agreement is void; Learn the five heads in this order.
Agency (Section 238): Principal is affected by an agent's misrepresentation or fraud made in the course of business within authority; not if outside authority; Illustration (a): an unauthorised misrepresentation by the agent still makes the contract voidable at the option of the third party, as between that third party and the principal.
Inadequate consideration (Section 25, Explanation 2): Inadequate consideration does not by itself make an agreement void; But the court may consider it when deciding whether consent was freely given.

How to solve Free Consent and Legality of Object questions

Use this method for any case-study or theory question on free consent or legality of object.

1Identify the contract and the party who wants out (or the party being sued).
2Ask which defect is present: threat or unlawful detention (coercion), dominant position (undue influence), deliberate false statement or concealment (fraud), innocent false statement (misrepresentation), or a wrong belief about facts (mistake). If the question is about the purpose of the deal, check Section 23.
3Match the facts to the definition in the Act. Write the definition in one line and tie each fact to it.
4Apply the 'but for' test: did the defect actually cause the consent? Check the Explanation and the Exception to Section 19, such as means of discovering the truth.
5State the legal effect: voidable (Section 19 or 19A), void (Section 20 mistake or Section 23), or valid.
6State who holds the remedy: rescission, or affirming the contract and claiming performance for fraud or misrepresentation, or court setting aside under Section 19A.
7Close with a one-line conclusion naming the section and the status of the contract.

Quickest way: Voidable or void in four questions

When to use it: Use it for MCQs and for the opening line of a written answer when time is short.

Is the defect coercion, undue influence, fraud or misrepresentation? If yes, answer 'voidable' (Section 19 or 19A).
Is it a mistake? Both parties wrong about an essential fact means void. Mistake of law or one party's mistake means no relief on that ground.
Is the object or consideration illegal, immoral or against public policy? If yes, answer 'void' (Section 23).
Did the victim have the means to find the truth, or would they have signed anyway? If yes, the contract is not voidable.

Common mistakes in Free Consent and Legality of Object

Calling a contract induced by fraud or coercion 'void'.
Void and voidable sound alike and are used loosely in daily speech.
Fix: Free consent defects (except bilateral mistake) give a voidable contract. Only the injured party can cancel it. Reserve 'void' for unlawful object and bilateral mistake.
Treating fraud and misrepresentation as the same thing.
Both involve a false statement and both make the contract voidable.
Fix: Fraud involves intent to deceive or reckless disregard for truth. Misrepresentation is an innocent false statement. Both allow rescission, but in your answer name the intent element before choosing the label.
Applying the Section 19 Exception to coercion.
Students learn 'means of discovering the truth' and apply it to every defect.
Fix: The Exception covers misrepresentation and fraudulent silence only, where the truth could be found with ordinary diligence.
Citing Section 19 for undue influence.
Older notes list all defects together under one remedy section.
Fix: Undue influence is dealt with under Section 19A. Also mention the burden of proof rule in Section 16(3) when the deal looks unconscionable.
Saying every mistake makes a contract void.
The word 'mistake' is in Section 14, so students assume it always defeats consent.
Fix: Only a mistake of fact shared by both parties on an essential matter makes the agreement void. A mistake of law in India or a unilateral mistake does not.
Writing that a hard bargain or a high interest rate is always undue influence.
Students ignore the dominance element.
Fix: Section 16 Illustration (d): a banker charging a high rate during a money-market stringency is ordinary business. You must show a position to dominate the will and an unfair advantage.

Worked examples

Example 1

Mr. Iyer, an elderly and seriously ill man, is treated at home by his family doctor, Dr. Mehta. Relying on the doctor's advice and Mr. Iyer's distress, Dr. Mehta gets him to agree to pay ₹5,00,000 for treatment whose reasonable fee is ₹20,000. Mr. Iyer later wants to avoid the contract. Advise him.

Show the solution

Defect: the facts point to undue influence under Section 16, not coercion. There is no threat of an unlawful act.
Dominance: Dr. Mehta is in a position to dominate Mr. Iyer's will. Section 16(2)(b) deems this where the other person's mental capacity is affected by age, illness or distress, and the doctor also holds real authority as medical attendant.
Unfair advantage: a fee of ₹5,00,000 against a reasonable ₹20,000 is unconscionable on the face of it.
Burden: under Section 16(3), the doctor must prove that the contract was not induced by undue influence.
Effect: under Section 19A, the contract is voidable at Mr. Iyer's option. The court may set it aside absolutely, or on just terms, for example by requiring him to pay a reasonable fee for treatment received.

Answer: The contract is induced by undue influence and is voidable at Mr. Iyer's option under Section 19A. The burden of proof is on Dr. Mehta, and the court may set the contract aside on just terms, such as payment of a reasonable fee.

Example 2

Anil sells his small factory to Bharat. Before the sale, Anil falsely says the factory makes 500 units a month. Bharat examines the factory accounts, which show only 400 units a month, and still buys. Later he wants to cancel the contract. Can he? Would your answer change if Anil had secretly altered the accounts so that they showed 500 units?

Show the solution

Defect: Anil made a false statement of fact about output, which is misrepresentation. If he knew it was false and meant to deceive, it is fraud. Either way Section 19 would normally make the contract voidable.
Causation: Bharat read the accounts, which showed 400 units, and bought anyway. So he did not rely on the false statement. The Explanation to Section 19 says a misrepresentation that did not cause consent does not make the contract voidable.
Means of discovery: the Exception to Section 19 says the contract is not voidable if the party had the means of discovering the truth with ordinary diligence. Bharat actually discovered it. This matches Section 19 Illustration (b).
Conclusion on the first case: Bharat cannot avoid the contract.
Variation: if the accounts were secretly altered to show 500 units, Bharat's means of discovering the truth were defeated by Anil's active deceit. The statement was then fraud which did cause the consent, so the contract would be voidable at Bharat's option under Section 19. Bharat could also choose to affirm the contract and insist on being put in the position as if the statement were true.

Answer: In the first case Bharat cannot avoid the contract, because he knew the true output and did not rely on the statement. In the altered-accounts case there is fraud that caused his consent, so the contract is voidable at Bharat's option under Section 19.

Exam tips

Write the section number next to every defect (14, 15, 16, 17, 18, 19, 19A, 23). Examiners give step marks for the correct label and its legal effect.
For case studies, quote the key words of the definition in one line, then apply the facts. Do not copy the whole section.
In the MCQ section, look for the words 'void' and 'voidable' in the options. Decide the status first, then eliminate the options. There is no negative marking, so always attempt every question.
For 'distinguish between' questions, draw two columns on the paper: meaning, intent, effect, remedy. Keep each point to a line.
For public policy and unlawful object questions, name the head of Section 23 that applies, then state that the agreement is void.

Practice questions from Indian Contracts Act, 1872

Free Consent and Legality of Object in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Free Consent and Legality of Object: frequently asked questions

What is the difference between coercion and undue influence?

Coercion rests on a threat or unlawful detention of property, which pressures the person from outside. Undue influence rests on a relationship where one party can dominate the other's will and takes an unfair advantage. Both make the contract voidable, under Section 19 for coercion and Section 19A for undue influence.

What is the difference between fraud and misrepresentation?

Fraud is a false statement or concealment made with intent to deceive, or recklessly without caring whether it is true. Misrepresentation is an innocent false statement made without intent to deceive. Both allow the injured party to avoid the contract, subject to the Exception to Section 19 about means of discovering the truth.

Is a contract with an unlawful object valid?

No. Under Section 23, if the consideration or object is forbidden by law, would defeat a law, is fraudulent, involves injury to another, or is immoral or opposed to public policy, the agreement is void. It cannot be enforced by either party.

When does mistake make an agreement void?

An agreement is void when both parties are under a mistake about a matter of fact essential to the agreement (Section 20). A mistake of law in India, or a mistake by only one party, does not make it void or voidable under Sections 21 and 22.

Does the principal answer for fraud by an agent?

Yes, when the agent commits the misrepresentation or fraud in the course of business for the principal, it has the same effect as if the principal had done it (Section 238). If it was in a matter outside the agent's authority, the principal is not affected.