My dear anonymous friend,
Certain questions of law, at times, cannot be answered clearly in isolation from the facts underlying such questions. Your piecemeal queries after every response, without providing complete facts pertaining to the so-called Company, its H.O., and its branches, including different manufacturing facilities, compel me to suspect the very purpose of your questions, for which, in fact, I am very sorry.
Generally, questions in law can be purely academic or arise from real-life situations. Particularly in the latter case, transparency is of much importance to get an appropriate answer without the intention to circumvent the provisions of law. As citeHR is an open forum, the principles of ethics prevent the resource persons from encouraging such questions.
With the above caveat, let me browse over the various provisions of the ID Act, 1947 relevant to the thread under discussion, from which I hope you can derive the answer yourself.
Chapter V-A of the Act
Chapter V-A of the Act deals with layoff and retrenchment in general as well as in particular to certain industrial establishments.
Chapter V-B of the Act
Chapter V-B of the Act deals with special provisions relating to layoff, retrenchment, and closure in respect of certain industrial establishments.
Both chapters have their definitions of the term "industrial establishment" for the respective purpose of the chapter. If any difficulty in interpretation arises with reference to the purpose, it has to be resolved by referring back to the definition of the term "industrial establishment or undertaking" as defined under section 2(ka) of the Act.
Now, please decide for yourself by matching the actual facts of the issue.