Fraud payments received in my bank account

Hi I sold 20k worth Bitcoins to a Person on Localbitcoins platform few months ago for which he sent me the payment to my Bank account. Recently I came to know that he had someone else to make the payment (He did a fraud with the person who sent me the payment) On receipt of payment I gave him the amount of Bitcoins. Now I got a call from the person that he has filled a complaint against me because he sent the payment to my Bank acc. I have all the proofs of transactions I did with the fraudster. Should I go and file a Complaint with police regarding this if yes where should I file it. Thanks