KALYAN: Fed up with the treatment of his 10-year-old mentally challenged daughter, a drunk man strangled her to death in Dombivli.Manoj Agrahari, 38, has been arrested on the complaint of the girl’s mother Lilavati. Lavli was being treated in a hospital in Thane and Manoj was finding it difficult to meet the expenses. Frustrated, he used to say, “There is no use of a retarded daughter, she should be...