State Bank Of India [SBI] — bank not refunding money and not taking action on unauthorised transaction

Address:

Pune, Maharashtra, 411033

My name prakash navnath gade.
On on 28 november 2018 someone withdrawn cash from atm in new delhi at 9:21 a. M. Unauthorisely without my permission from my bank account. I had never shaired my account details with anyone. I have make complaint in sbi, but bank not taking action and not refunding money to me according to rbi rules.
Bank manager of branch not co-operating.
In this case bank telling go to police station and police says go to bank. When we said bank manager according to rbi rules bank should have to refund money to customer within 10 days of completing but bank manager and bank officers saying they don't know about this about this rbi rules and guidelines. They just avoiding me.
Please help.