I have given my property for rent to a tenant for the past 20 years. He was doing some business in that space. During the last one year period he has not paid the rent. I was asking him to vacate the property since he was not paying the rent, but he did not do that till now. Suddenly yesterday my tenant was vacating the property and was planning to rent it to another person, I also got the news that he had taken the advance for renting the property. When I called my tenant he was not ready to talk properly. When I asked him what to vacate the property and give the keys, he talked very badly. What should I do in this case?