Difference between statutory pf and recognized pf?

hireshire (n/a) (185 Points)

04 June 2012  

A salaried person's provident fund taxability depends on whether the PF is a Statutory Provident Fund or Recognized Provident Fund or Unrecognized Provident Fund. I want to know the difference between these types of fund and how to find out the employer is using which PF for its employees? Another query is that companies like MTS (telecom company) uses which type of provident fund for its employees?