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  • Oct 01,2026

Contract Act, Section 40

Contract Act, Section 40: Person by Whom a Promise Is to Be Performed

Section 40 of the Indian Contract Act, 1872 provides that a contractual promise must be performed personally where the nature of the contract shows that the parties intended performance by the promisor himself, particularly in contracts involving personal skill, confidence, or qualifications.

In all other cases, the promisor or, where applicable, the legal representatives may employ a competent person to perform the contractual obligation, thereby respecting the parties' intention while permitting delegation where personal performance is not essential.

1. Purpose of Section 40

The primary objective of Section 40 is to determine who is legally required to perform a contractual promise.

The provision requires personal performance where the promisor's skill or qualifications are essential, while permitting delegation where the identity of the performer is not material to the contract.

2. General Rule of Performance

Section 40 provides that every valid contract creates a legal obligation for the promisor to perform the promised obligations, although personal performance is required only where the parties intended it or the nature of the contract so demands.

3. Personal Performance by the Promisor

Where the nature of the contract indicates that the parties intended personal performance, the promisor himself must perform the contractual obligation.

Such contracts are founded on the promisor's personal skill, expertise, reputation, or qualifications, making substitution by another person generally impermissible.

4. Determining the Intention of the Parties

Section 40 emphasizes that whether personal performance is required depends on the intention of the parties, as determined from the terms of the contract, its nature, and the surrounding circumstances.

5. Contracts Requiring Personal Skill or Qualifications

Certain contracts require personal performance because they depend upon the special abilities, qualifications, or expertise of the promisor.

Where the contract is based on the promisor's personal knowledge, artistic talent, professional skill, or individual judgment, the obligation cannot ordinarily be performed by another person.

6. Delegation of Performance

Where personal performance is not required, Section 40 permits the promisor to employ another competent person to perform the contractual obligation.

The law recognizes that many contractual duties may be carried out by agents, employees, contractors, or other authorized persons without affecting the rights of the promisee.

7. Competent Person to Perform the Promise

Section 40 permits delegated performance only through a competent person possessing the necessary ability, qualifications, or capacity, and the promisor remains responsible for appointing a suitable person.

8. Performance by Legal Representatives

Section 40 also recognizes that, in appropriate circumstances, the legal representatives of the promisor may employ a competent person to perform the contractual obligations.

Where the promisor dies before performance and the contract does not require personal performance, the obligation survives and may be discharged through the legal representatives.

9. Difference Between Personal and Delegable Contracts

A significant distinction exists between contracts requiring personal performance and those capable of delegation under Section 40.

Personal contracts terminate upon the promisor's inability or death where personal skill or confidence is essential, whereas delegable contracts may be performed by another competent person because the performer's identity is not material.

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