There are numerous court verdicts stating that all employees working in connection with the operations of a factory should be considered together for the coverage of any labor law, even if they are working in separate locations. Similarly, having separate licenses and maintaining separate financial statements, such as the Profit & Loss Account and Balance Sheet, will not establish the establishments as separate entities for labor law coverage. What is crucial here is the financial interdependence among the units. For further reference, you can review a Supreme Court Verdict attached.
L N Gadodia & Sons & Anr Vs Regional Provident Fund Commissioner
You may also refer to L N Gadodia & Sons & Anr Vs Regional Provident Fund Commissioner [(SC) 2011 LLR 1124], a case regarding the consolidation of establishments for EPF coverage.