On January 7, she had gone to relieve herself when the accused took the girl to a secluded place and sexually abused her. KARUR: Police have arrested a septuagenarian on charges of sexually assaulting a Class VI girl in Karur district , and his son for threatening the victim's family not to reveal the incident to anybody. He has been identified as P Ramaiah, 79, a native of Moolapatti village near Aravakuruchi. After arriving home, the girl complained to her mother about the incident. The father and son were booked under Pocso Act , police said..