Once an establishment is covered under the provisions of EPF, either compulsorily or voluntarily, it will remain under it until it is permanently closed. As you have not paid contributions for a long period, damages equal to the defaulted amount and interest at 15% will be levied by the department.
Ceiling Limit and Exemptions
The ceiling limit until 31.08.2014 was Rs. 6,500 per month (only basic and DA), and currently, it is Rs. 15,000 per month. An employee earning above the ceiling limit is considered an exempted employee, provided that they were not an existing member of the scheme at the time of joining.
It is in your own interest to maintain proper records of salary/wage payments that match your balance sheet.
Regards,
P.K. Sharma