Hi Sougat,
Don't worry,
Your father has an EPF account, which means he was working in a company or any organization through which his PF was deducted from his salary and deposited to the PF office. Please understand that the EPF account is maintained by the Provident Fund office and not by the bank. If your father had a PPF account in a nationalized bank, he was depositing funds directly into the bank. In that case, you must have a PPF bank passbook that you can show to bank officers. By completing some formalities, you could collect the amount.
But if the account is with the PF office, then you have to fill up Form No. 19 and Form No. 10C and submit them to the PF office through the company. The company will verify his services, check the records, and after the employer's signature, the forms will go directly to the PF office through the company. The PF office will also check the records, and after verification, they will transfer the accumulations directly to the concerned bank account, which may take approximately 1 to 2 months, from where you can withdraw the money.
Regards,
Sanjay Mulay