EPF - Pension Component

Dear CA Club,

Can you please help understand what happens to the 8.33%  EPS ( employee pension scheme ) component of Employer's contribution towards EPF , when any private sector employee transfer the EPF  from old company to new company within the same UAN  ? 

Where is the EPS gets accumulated and how to see the balance of EPS for employees who has worked when UAN was not implemented ?

After working for 30/35 years , is there any provision for pension for private sector employees ? 

Any clarity may help lots of individuals . Thanks