Three minor girls were sexually assaulted in Tamil Nadu's Thiruvanmiyur district on Thursday. The Inspector of Police at Neelankarai police station received a complaint from a person in which he stated that three girl children, including his daughter, aged about 7 to 10 years, were sexually abused by an unidentified person in Thiruvanmiyur, said officials. On receiving the complaint, a case was registered under sections POCSO and IPC at All Women Police Station Neelangarai.