Can a tenant capture the house if he is staying without rent agreement

Our tenant WAS staying at our property, but now he is not staying there from last 3 or 4 years because he has made his own house in the same city. He is just keeping his luggage or some belongings in the house. We have allowed him as tenant before 10 years. As we thought they are nice guys so after 1 or 2 years we never force them to make the rent agreement. But now as we are saying to vacant our house he always avoids that and says I will do that after 3 or 4 months. When I ask him to meet me, he never come to meet us. As far as rent is concerned he pays the rent. He never come to pay rent. He send the rent to us through his employees or his known person or sometime do paytm through his employees. He some time delays it or pays two months rent together in a single time. He is also not paying electricity bill from last 6 or 7 months, hence due to this there is no electricity connection also. Now we are not clear, we are in dilemma about his thought or his vision. what to do and how to deal with the situation.