Your question has already been answered. However, it seems you are looking for an answer that would suit you. Such denials or self-denials do not entitle you to any exemption from registration. The picture cannot get clearer than this - a factory needs to be registered under the Factories Act. An establishment/shop needs to be registered under the Shops & Establishment Act. Accordingly, other applicable registrations have to be made, whether for EPF or ESI. Also, all other forms, registers, and returns need to be periodically filed. STPI provides certain benefits and concessions on taxes, etc.; however, they do not provide any exemptions or escape from the provisions of the various Labour Acts. Hope the above is clear and unambiguous.
Warm regards.