I endorse the answer by Varghese ji. I endorse the said answer after considering the below-given points:
Definition of "Contractor" in CLRA
"Contractor" as defined in CLRA, in relation to an establishment, means a person who undertakes to produce a given result for the establishment, other than a mere supply of goods or articles of manufacture to such establishment, through contract labour or who supplies contract labour for any work of the establishment and includes a sub-contractor.
Definition of "Contract Labour" in CLRA
A workman as defined in CLRA 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.
On reading both the terms as above, I conclude that the party who supplies and installs the transformer is not a contractor under the CLRA, and the workmen of such party are not contract labour. Normally, such kind of job is done with the help of fewer than 10 workers, and therefore no question of a license arises. The principal employer also avoids enrolling such party as a contractor in his RC since such jobs do not last for long.
Since the queriest raised this point, we have to debate it.
Legal View on Contract of Service vs. Contract for Service
I have another legal view also in this context, which is as follows: The term "undertake to produce a given result" necessarily involves the contract of service, and the CLRA is applicable only in the case of a contract of service. Whereas, the supply and installation of a transformer is not a contract of service but a contract for service. A contract for services is strictly a business contract between two firms on a buyer and supplier basis. There is no question of any employment relationship between the parties.
This is my view. It is not in CLRA. It is only an academic discussion. I expect comments on this by experts. One can differ with me. I just expressed my point of view.
Regards