Villupuram: The Vanur police arrested a man for allegedly strangling to death his 14-year-old after she refused to end her relationship with a youth.Police said Sivasasthiri, 40, lived with his wife, S Vimala, and their two daughters, aged 16 and 14, at T Parangani near Vanur in Villupuram district. A few months ago, the younger daughter went to her grandmother’s house in Ranipet for her studies. There, she grew close to a youth, Jeeva, police said. Both families belong to the same community.After learning about the relationship, her parents reprimanded her, brought her back home, and enrolled her in Class X at a nearby govt higher secondary school. Despite repeated warnings from her family, the girl continued to remain in touch with Jeeva over the phone for the past three months, police said.On the night of the incident, Vimala was in Vellore. While the girl was asleep, Sivasasthiri allegedly strangled her, angered by her refusal to end the relationship. He then called his brother, Sasikumar, and confessed to the crime, police said. Relatives rushed to the house and took the unconscious girl to Vanur govt hospital, where doctors declared her brought dead.Vanur police registered a murder case and arrested Sivasasthiri. Further investigation is under way.