I just cannot understand as to how your PF withdraw amount credited wrongly to other account. Normally when the PF withdraw form is applied, it is done with the copy of your bank pass book, so that the amount due to you would be credited directly to your bank account. How come it went to other account. Nevertheless, contact the bank manager and take the phone number of the customer to whom it was wrongly credited, put forth your details and ask him or her to withdraw the amount and give it to you. You can also sue the PF office for their laxity and ask them to send the amount to your account again.
'Idhuvum Kadandhu Pogum "
Even this challenging situation would ease