Company not giving me my experience letter

Firstly I have completed the bond of one year with company. Since company hasn't any notice period policy, so I have given them 15 day notice period. I have 1year 2-3 months experience in the company. I have also mentioned I want my documents with my leaving. But the delay them. And after one month of notice period they call me and they have all my documents ready, but without any course boss took my experience letter inside his office and told hr to not issues my experience letter. Hr told me to talk to boss and I gone to boss office he refuse totally. Without any discussion I called police. After call police he told me to leave office and I didn't, couse I didn't know what to do. I told him "I have called police and after they come i,'ll leave". He record my voice at that time. After that police told me to say sorry to him, I didn't, couse I have no fault, boss wanted to insult me front of all employees. So I preferred to go to police and did complaint against him. Now my boss telling police that I miss behaved with him. Please suggest me if I am wrong or what should I do further.?