How to revoke bail.

Hi sir, Before six months a relative of mine age 27 who was living in our home for 1 year as he doesn't have parents. He moved from another place after some issues. He stabbed a person in our village back of thigh (slightly below buttock) the person was admitted to hospital and a case was opened on our relative. He left our home after the incident and police approached our home several times for his details we couldn't provide as he was not in contact with us. Once he came to my home before 3 months when my grand mother is not feeling well and left before police came for him. Recently (1 month back) police came to our home saying that if they couldn't find him they would take my father into custody. We somehow got the guy and took him to police. My father and a neighbor of ours talked to police and took station bail giving their surety to police. The brought our relative back to my home. This guy has gone mad now and causing lot of trouble for my parents. He even went to the victims home and beat his mother when we weren't watching. Is it possible for us to surrender him to police and take back the surety my father gave to him. I don't want my parents to be burdened by this mad guy. A lawyer suggested that we our self put him in mental facility. But what if he comes back and commit another crime I am worried that my father would be in trouble for giving surety to him. Can we revoke the bail by going to police station and talking to police? Please suggest me how to move further. Thanks in advance for your help.