Ghaziabad, Nov. 1 -- The Ghaziabad police on Wednesday arrested a 21-year-old man for allegedly raping his 17-year-old cousin and pushing her off the roof of her house on the night of October 20 in the Niwari police station area. Police said the girl suffered head injuries in the fall and required hospitalisation. She has since been discharged and is stable. Officers said the accused is a college (undergraduate) student, while the survivor studies in Class 12. According to police, the teenager had been under treatment for depression for the past several years and had reportedly been sexually assaulted by the accused since the age of nine. Assistant commissioner of police (Modinagar) Amit Saxena said the accused visited the girl's home on Di...