You can withdraw your PF even though the employer does not attest your form. Your employer has no authority to hold your PF or stop it. It is maintained with the PF office, a government body, and your employer has no control over it.
Steps to Withdraw PF Without Employer Attestation
However, before applying for the PF, make sure of two things. You must have your PF code number with you. The second one is that the employer has deposited your PF with the Department and has filed necessary returns with the office.
Now, just fill in the withdrawal form (10c and 19) and get it attested by your Bank Manager. You can deposit this form at your regional PF office where your account has been kept.
With Regards