Contract Labour refers to workmen who are employed in or in connection with the work of an establishment by or through a contractor, with or without the knowledge of the principal employer. Under Indian law, the engagement and conditions of contract labour are governed by the Contract Labour (Regulation and Abolition) Act, 1970, which establishes a regulatory framework for the protection of contract workers and provides for the abolition of contract labour in certain circumstances.
Legal definition
The Contract Labour (Regulation and Abolition) Act, 1970 provides the framework:
Section 2(b): "Contract labour" means a workman who shall be deemed to be employed as "contract labour" in or in connection with the work of an establishment when he is hired in or in connection with such work by or through a contractor, with or without the knowledge of the principal employer.
The Act also defines key related terms:
- Contractor (Section 2(1)(c)): A person who undertakes to produce a given result for the establishment through contract labour or who supplies contract labour for any work of the establishment
- Principal employer (Section 2(1)(g)): The owner or occupier of the factory, the head of the government department, or the person responsible for supervision and control of the establishment
The Act applies to establishments employing 20 or more contract workers and to contractors employing 20 or more workers. The principal employer must obtain a registration certificate (Section 7), and the contractor must obtain a licence (Section 12) before engaging contract labour.
New law equivalent: The Occupational Safety, Health and Working Conditions Code, 2020 (Chapter XII) subsumes the Contract Labour Act with certain modifications, including an increased threshold from 20 to 50 workers.
How courts have interpreted this term
Steel Authority of India Ltd. v. National Union Waterfront Workers [(2001) 7 SCC 1]
In this landmark five-judge Constitution Bench decision, the Supreme Court held that upon the issuance of a notification under Section 10(1) abolishing contract labour in any process, operation, or work, contract workers do not have an automatic right to absorption as regular employees of the principal employer. The Court overruled the earlier position that abolition of contract labour resulted in automatic absorption, holding instead that the appropriate government must examine whether the work should be done by the principal employer's own workers and, if so, provide a preference in employment to the displaced contract workers.
Gujarat Electricity Board v. Hind Mazdoor Sabha [(1995) 5 SCC 27]
The Supreme Court held that the factors to be considered while issuing a notification under Section 10(1) for abolition of contract labour include: whether the work is incidental to or necessary for the main business of the establishment, whether it is of a perennial nature, whether it is done ordinarily through regular workmen, and whether it is sufficient to employ a considerable number of full-time workmen. The Court emphasised that the conditions specified in Section 10(2) are relevant considerations, not mandatory preconditions.
International Airport Authority of India v. International Air Cargo Workers Union [(2009) 13 SCC 374]
The Supreme Court reiterated the SAIL position and held that even where contract labour has been engaged for a long period and performs work identical to regular employees, the courts cannot direct absorption without a Section 10(1) notification from the appropriate government. The remedy for exploitation of contract labour is regulatory enforcement, not judicial regularisation.
Why this matters
Contract labour is one of the most contentious issues in Indian industrial relations. An estimated 30-40% of the organised sector workforce in India is engaged through contractors, and the gap between the wages and benefits of regular workers and contract workers performing identical work is a persistent source of industrial unrest.
For principal employers, the Contract Labour Act imposes dual obligations: compliance with licensing and registration requirements, and subsidiary liability for the welfare of contract workers. If the contractor fails to provide facilities (canteens, rest rooms, drinking water) or pay wages at the prescribed rates, the principal employer must fulfil these obligations and recover the cost from the contractor.
For contract workers, the SAIL judgment represents a significant limitation on their rights. Even after decades of continuous engagement, contract workers cannot claim absorption as regular employees through judicial intervention. Their path to regularisation depends on the government issuing an abolition notification under Section 10(1), which is a policy decision that courts will not compel.
A common misunderstanding is that contract labour can be used to circumvent labour laws. Courts have held that the engagement of contract labour in core activities, for extended periods, and in conditions that amount to a sham arrangement can be challenged as "camouflage" — the Supreme Court in numerous cases has held that the court must look at the substance of the arrangement, not its form.
Related terms
Broader concepts:
Related employment types:
Related protections:
Frequently asked questions
Can contract workers be absorbed as regular employees?
Following the SAIL judgment (2001), contract workers do not have an automatic right to absorption even after the abolition of contract labour under Section 10(1). The appropriate government must consider whether the work should be done by regular employees and, if so, the displaced contract workers are entitled to a preference in employment. Absorption cannot be directed by courts without a Section 10(1) notification.
What is the principal employer's liability for contract workers?
The principal employer has subsidiary liability under the Act. If the contractor fails to pay wages, provide welfare facilities, or comply with statutory obligations, the principal employer must fulfil these obligations. The principal employer can recover the cost from the contractor or deduct it from amounts payable to the contractor.
Can contract labour be used for core activities?
The Act does not expressly prohibit the use of contract labour for core activities, but courts have held that the use of contract labour for perennial core activities performed alongside regular workers raises a strong presumption of sham engagement. The appropriate government may issue a notification under Section 10(1) prohibiting contract labour in such activities.
This entry is part of the Veritect Indian Legal Glossary, a comprehensive reference of Indian legal terminology grounded in statutory text and judicial interpretation.
Last updated: 2026-03-27. Veritect provides this content for informational purposes and does not constitute legal advice.