Factory License for Subcontractors: What Licenses Do Assemblers Really Need?

Is a factory license applicable for subcontractors? They are not manufacturers; they are assembling the products received from another factory. What licenses and registrations are required for them?

Please let me know if you require any further information.

"Assembling" is one of the "manufacturing processes" as the term is defined in the Factories Act 1948. Therefore, if any establishment is engaged in assembling, it will be treated as a factory.