Dear Mahesh,
Your question is one of the best questions related to the ESI, i.e., why many members have seen your post but none of them have replied.
I will try to clarify your doubt:
i. You cannot say that any factory/establishment/area is not applicable with the reason that there is no ESI dispensary within 7 or 8 km of it.
ii. Generally, it is an internal issue of providing an ESI dispensary or any other mode of medical care center like a Panel Doctor system within an 8 km radius of the industrial population of an implemented area.
iii. Before implementing any area, ESI will look into all these aspects, such as the number of factories/units and the number of employees who are coverable employees and what medical infrastructure needs to be made available to such insurable employees after implementing that area.
iv. After coming to one conclusion only, i.e., after providing better medical facilities either way, i.e., providing a Panel system or attaching such employees to the nearest dispensary (irrespective of the distance), the scheme will be implemented in the new areas.
With this background, you can conclude that the distance between the ESI dispensary and your unit does not make any sense for the coverage of your unit under the ESI Act. The only thing you have to confirm is WHETHER YOUR UNIT IS IN AN IMPLEMENTED AREA OR NOT. If it is in an implemented area, it is better to register voluntarily immediately; otherwise, you will have to pay the contribution, including THE INTEREST amount also.
If any ESI dispensary is not available nearby, please represent to your Regional Office to open a new Dispensary.
I hope all your doubts are cleared!
All the best...
V.S.P.