1. The rules is that if anyone worked with the company for more than 6 months then you can withdraw PF (with form 19) and pension (with form 10c).
  2. If you worked for less than 6 months then you are not eligible to withdraw your pension amount so you just submit form 19 for PF withdrawal.
You can submit the above forms to your recent employer or if your employer no more exists, then you can submit above form directly to PF office by getting it attested from any government officer.