4th April 2014 From India, Madras
It can be opened by any person/employee and can remit amount every month. But there won't be any matching contribution from Employer.You will get interest on the accumulation of amount.
Where as the Provident Fund in a company is different. It is as per the Provident Fund Act. It will be welfare measure. There will be matching contribution from the company and other benefits will be available to the employee/family members including interest and pension.
Both are different, you can continue both if you want.
6th April 2014 From India, Hyderabad