[Resolved]  State Bank of India — Fake note through ATM

Address:

Pune, Maharashtra

Hello,
My father (age 75) withdraws money from SBI ATM near home as he holds account with SBI. Some days back he got Rs500 note which bank claims as FAKE and hence denies to refund. In a way my father lost Rs500 for no fault of his. Surprisingly, instead of destroying the note bank handed over the same back to my father.
The note is slightly faded (kind of washed out) but the marks are clear. I have tried to check on web and I dont see "0FQ" series appearing in the list of fake number series lists for Rs500.

Kindly let me know what best can be done and if money can be recovered.