Father's PF in which the nominee was my mother - and both have expired - am I entitled and what documents submit to PF office?

Dear/Member, My father was an EPF member, in which the nominee was my mother - and both have expired, I am their son my age in 18 years, am I entitled to their pf and pension, and what documents submit to PF office. Pls help and provide documents list

Are you the only child to your parents? any other living siblings?
When your dad died still he was in service or died after retirement?
When they were living whether they were drawing pension, do you have their pension payment & family pension orders? Was mummy drawing Family pension when she expired?
When your dad & mummy expired?
Who is the nominee of the bank a/c attached to their pension payments.
Can you find out & confirm whether they included your name in the list of members filed by your dad.?

he was in service resignation after died.

What is this Sarvesh bhai,?
You said - "he was in service resignation after died" what should I understand from this?! Is't he was in service, then resigned & later died? If yes you have to answer to my other queries as well.