Dear Vikas Doshi, ESI is a comprehensive code covering a large area of India. However, when it comes to medical facilities, providing the same in many areas is challenging. As a result, the corporation has divided areas into two parts: IMPLEMENTED AND NON-IMPLEMENTED AREAS.
Factories and establishments located in implemented areas are covered. Conversely, factories and establishments in non-implemented areas are not covered. Therefore, you must obtain the list of areas from the corporation directly.
Regards, KIRAN KALE.