Dear Hari,
In short, all laborers are also employees, but not all employees are laborers. There are three main categories:
Labour: Operator, Worker, Grade W-1 onwards, Welder, Fitter, etc.
Supervisor: Supervisor, Foreman, Accountant, Cashier, Engineer, Grade E-1 onwards, etc.
Manager: Manager, Assistant Manager, Deputy Manager, General Manager, etc.
All of these individuals are considered employees. Laborers perform physical tasks under the supervision of a designated supervisor. The supervisor, in turn, follows the directives of a manager. The manager adheres to the instructions provided by the upper management or the owner.
I hope this brings clarity to the distinctions.
Regards,
AK Mathur