Landlord Harassment — Landlord harassing and abusing over phone

Our landlord Shailesh Nair is harassing and abusing me over the phone as I am not allowing any of his visitor who visits without informing anytime to see the flat which he wants to sell. He is sending people to see the flat from the second month of my tenancy as he wants to sell it. First of all why he gave this flat on rent for a period of 11 months if he wanted to sell it. I have spent a lot of money in shifting and paperwork in this flat and from the next month only he wants to sell it and wants me entertain every visitor of his and when I don't allow strangers inside he harass and abuse me over the phone.