PF Nomination Rules - keeping father as a nominee after getting married?

Hi I was newly joined in one Organization for Personal files audit. I had one doubt about PF Nomination and Declaration, i,e At the time of joining employee is UN-married, he mentioned his father as a nominee, now he is married, is there any rule to be change his nominee r not.
please any body help
Regards Srikanth.

Dear Srikanth,
As per my knowledge you have to fill all details required in PF form 2 & submit the same in PF office.Now most of the things are online .
I have done the same for one of our employee & hence it will take time. to update in the sysytem
I hope this will help you.
Regards
Yachana.