Blackberry curve8520
Lost mobile phone

I lost my phone on 22nd jan in pune, near city pride theatre kothrud . it is a blackberry handset.after finding it is lost, i called on that number.the one who picked up the phone disconnected it and switched it off.after sometime it was busy..i made complaint in police station but police are also not sure about getting my mobile back.please help me if you can.your help mean alot to me..!