Dangerous Machines (Regulation) Act - Definition
Section 2K:
Operator

A person employed directly or by or through any agency (including a contractor), whether as a regular worker or as a casual worker, with or without the knowledge of the principal employer, whether for remuneration or not, in the operation or cleaning of any dangerous machine or any part thereof or in any other kind of work incidental to, or connected with, the operation or cleaning of any dangerous machine or any part thereof