Explanation:

Section 25-K-

(1) The provisions of this Chapter shall apply to an industrial establishment (not being an establishment of a seasonal character or in which work is performed only intermittently) in which not less than 100 [one hundred] workmen were employed on an average per working day for the preceding twelve months.

(2) If a question arises whether an industrial establishment is of a seasonal character or whether work is performed therein only intermittently, the decision of the appropriate Government thereon shall be final.

Further, Section 25 A of the Act provides clearly that the provisions of the Industrial Disputes Act, 1947 relating to lay- off and retrenchment compensation do not apply to the following three types of industrial establishments:

(a) An industrial establishment in which less than fifty workmen on an average per working day have been employed in the preceding calendar month  
(b) Industrial establishments which are of a seasonal character or in which work is performed only intermittently 
(c) Industrial establishments to which chapter V-B applies as inserted by the Industrial Disputes Amendment Act, 1976.