Agreements by Persons of Unsound Mind

Introduction

For a contract to be valid, the parties must have the mental ability to understand what they are doing. If a person cannot understand the nature and consequences of a contract, the law considers such a person incapable of contracting.

The Indian Contract Act, 1872 lays down rules regarding agreements made by persons who are of unsound mind.

Meaning / Definition

According to Section 12 of the Indian Contract Act, 1872, a person is said to be of sound mind for the purpose of making a contract if, at the time of making the contract:

• The person is capable of understanding the contract, and
• The person is able to form a rational judgment (logical decision) about how the contract affects their interests.

Therefore, if a person cannot understand the contract or cannot judge its consequences, the person is considered of unsound mind and cannot enter into a valid contract.

Soundness of mind depends on two factors:

• The capacity to understand the terms of the contract
• The ability to form a rational judgment about its effect

Section 12 also recognizes that a person’s mental condition may change over time.

• A person who is usually of unsound mind but occasionally of sound mind can make a contract during the period of soundness.
• A person who is usually of sound mind but temporarily of unsound mind cannot make a contract during the period of unsoundness.

Modes or Types

Lunatics

A lunatic is a person who suffers from mental illness but may have periods of normal thinking, known as lucid intervals (temporary periods of sound mind).

• Contracts made during periods of unsoundness are void (not legally valid).
• Contracts made during lucid intervals are valid and binding.

Thus, a lunatic is bound by contracts made when he is mentally capable.

Idiots

An idiot is a person who is permanently of unsound mind from birth. This condition is usually congenital (present from birth).

Since such a person never has lucid intervals, they cannot make a valid contract at any time.

Drunken Persons

A drunken person may temporarily lose the ability to understand the nature of a contract.

If a person is so intoxicated that they cannot understand the contract, the agreement made during that time is void.

However, once the person regains normal understanding, they can enter into valid contracts again.

Exceptions

Agreements with persons of unsound mind are subject to exceptions similar to those applicable to minors.

Beneficial Contracts

A person of unsound mind may enforce a contract that is beneficial to them, provided it does not impose obligations on them.

Liability for Necessaries

If necessaries (essential goods or services suitable to the person’s condition in life) are supplied to a person of unsound mind or to someone they are legally bound to support, the supplier can recover the cost from the property of that person.

However, the person of unsound mind is not personally liable.

Practical Example

Suppose a person suffering from severe mental illness signs a contract to sell property while they are unable to understand the agreement.

Such a contract will be void, because the person lacked the mental capacity to understand the transaction.

However, if the same person enters into a contract during a period of mental clarity, the contract will be valid.

Summary

• Under Section 12 of the Indian Contract Act, 1872, a person must be of sound mind to enter into a valid contract.
• A person is of sound mind if they can understand the contract and judge its consequences.
• Lunatics may enter into valid contracts during lucid intervals.
• Idiots are permanently of unsound mind and cannot make valid contracts.
• Contracts made by drunken persons while intoxicated are void.
• Persons of unsound mind may enforce beneficial contracts.
• Suppliers of necessaries can recover the cost from the property of the person of unsound mind.