Section 57 — Prohibition of employment of contract labour.
57(1)
Notwithstanding anything contained in this Part, employment of contract labour in core activities of any establishment is prohibited: Provided that the principal employer may engage contract labour through a contractor to any core activity, if—
57(1)(a) the normal functioning of the establishment is such that the activity is ordinarily done through contractor; or
57(1)(b) the activities are such that they do not require full time workers for the major portion of the working hours in a day or for longer periods, as the case may be;
57(1)(c) any sudden increase of volume of work in the core activity which needs to be accomplished in a specified time.