A 33-year-old bus driver was arrested in Gurgaon on Tuesday for allegedly killing his live-in partner during an argument at their rented house in Dharam Colony, Palam Vihar, police said. The woman was found badly injured and covered in blood before being taken to a hospital, where doctors declared her dead, a TOI report stated. Police said the accused, identified as Akash, allegedly attacked the woman with a stick, a pipe and a roti belan. All three objects were later recovered from the spot.