Hi, Sougat,
Don't worry,
Your father has a EPF account that means he was working in company or any organisation through which his PF deducted from his salary and deposited to PF office, please understand that EPF account is maintained by the Provident fund office and not by the Bank, if your father had PPF account in nationalized bank he was depositing funds into bank directly then you must have PPF bank passbook you can show it to Bank officers and complete some formalities you could collect amount,
But in case it is at PF office then you have to fill up form No. 19 and Form No. 10C to PF office through company, company will verify his services and check the records and after signature of employer, forms will goes directly into PF office by the company, PF office also check the record and after checking they will directly transfer the accumulations to the concern bank account directly (it will take 1 to 2 months approximately) from where you can withdraw money.
Regards,
Sanjay Mulay