Police on Wednesday arrested a man for allegedly killing his daughter over her ‘immoral behaviour’. Police said they nabbed Mairaj Din, a resident of Kotlakhpat, after some women told them that he might have killed his daughter Aisha by poisoning her. They told that Mairaj’s 16-year-old daughter had died two days ago under mysterious circumstances and was hurriedly buried in a local graveyard. Later in custody, Mairaj Din confessed the crime.