1. Introduction

A contract imposes rights and obligations on the parties involved. For these obligations to be legally binding, the parties must be capable of understanding what they are agreeing to. This requirement is known as the capacity to contract. If a person does not have the legal capacity, any agreement entered into with them will either be void or unenforceable.

The rules regarding capacity are laid down in Section 11 of the Indian Contract Act, 1872.

2. Section 11 – Competency to Contract

Section 11 states:

“Every person is competent to contract who is of the age of majority according to the law to which he is subject, who is of sound mind, and is not disqualified from contracting by any law to which he is subject.”

From this definition, three conditions emerge:

1. The person must have attained the age of majority.
2. The person must be of sound mind at the time of entering into the contract.
3. The person must not be disqualified by law from contracting.

3. Detailed Explanation of Conditions

(a) Age of Majority

• In India, a person attains majority at 18 years of age. However, if a guardian has been appointed under the Guardians and Wards Act, 1890, or if the minor’s property is under the supervision of the Court of Wards, the age of majority becomes 21 years.
• A contract entered into with a minor (a person below the age of majority) is void ab initio, i.e., void from the beginning.
• Case Reference: Mohori Bibee v. Dharmodas Ghose (1903) – A minor mortgaged his property to a moneylender. Later, the Privy Council declared the mortgage void as the minor was not competent to contract.

Implications:

• A minor cannot be bound by any promise made in a contract.
• However, a minor can benefit from a contract (for example, receiving a scholarship or free gift).

A contract for necessaries (food, clothing, education, medical services) supplied to a minor is not enforceable against the minor personally, but the supplier can be reimbursed from the minor’s property.

(b) Soundness of Mind

• A person must be of sound mind to contract. As per Section 12, a person is of sound mind if, at the time of making the contract, he is capable of:
  1. Understanding it, and
  2. Forming a rational judgment about its effect on his interests.
• Persons of unsound mind include lunatics, idiots, drunkards, or persons under the influence of drugs. They cannot contract while their mental capacity is impaired.
• However, if a person is generally of unsound mind but occasionally becomes sane, they can contract during lucid intervals. Conversely, a person generally sane but temporarily insane cannot contract during the period of insanity.

Example:

• A person suffering from schizophrenia may sometimes be of sound mind. If he enters into a contract during a clear period, the agreement is valid.

(c) Persons Disqualified by Law

Apart from minors and persons of unsound mind, some categories of persons are barred by law from entering into contracts. These include:

1. Alien Enemies: During wartime, citizens of one country cannot contract with citizens of an enemy country, unless permitted by the central government.
2. Foreign Sovereigns and Diplomats: They enjoy immunity from being sued in Indian courts. However, they may enter into contracts if they choose to waive this privilege or obtain government permission.
3. Insolvent Persons: Once a person is declared insolvent, their property vests in an official receiver or assignee. They cannot contract regarding their property, though they may enter into contracts for personal purposes.
4. Convicts: While serving a prison sentence, a convict cannot contract unless special permission is granted. After the sentence is complete, the incapacity is removed.

Others: Certain statutory laws may disqualify specific persons, such as corporate bodies (which cannot contract beyond their powers) or government servants in cases where rules restrict them.

4. Importance of Capacity in Contract Law

The requirement of capacity ensures that only those who:

• Have sufficient understanding,
• Possess the legal maturity, and
• Are recognized by law as responsible individuals,
  are allowed to create legally binding obligations. This protects vulnerable persons (such as minors and unsound persons) from exploitation and also secures fairness in contractual dealings.

5. Conclusion

The capacity of parties is one of the most fundamental essentials of a valid contract. If any party lacks capacity—whether due to minority, unsoundness of mind, or legal disqualification—the contract cannot be enforced in law. Therefore, for any agreement to become a valid contract, the parties must fulfill all the requirements of Section 11 of the Indian Contract Act, 1872.