No,
Users can not add PF information but Can Edit the information added By HR.
To Edit the PF information:
Login to Employee Self-service portal
In Home >> Modules, Click on My profile,
Go to Financial Info,
Where the Provident Fund information can be viewed
hover onto the fields and click on the Edit button provided for the Nominee 1 and Nominee2
Edit the PF details in the side overlay
Note:
1. The Changes made by the user will be sent for approval according to the approval flow connected.