Bank Of India — Counterfeit note

Address:

Millat nagar, andheri west, mumbai-400053

Yesterday 13/07/23 I withdraw ₹20000 from. Cheque in bank of india lokhandwala branch.
They gave me 1 counterfeit note of ₹500.
I notice that in evening when the bank is close and then today 14/07/23 early morning I go to that branch and told them about the counterfeit note but they are giving me Nusence answer and not talking to me properly Now they are refusing to take back that note..
And firstly there cash machine is also scanning that note which should not happen.
So i want to file a complaint against them.
If you help me out then it's okay otherwise I m going to file fir against them and then the bank will face problem..