Hyderabad: Guntur police arrested Sai Defence Academy director Avula Subbarao in connection with Secunderabad violence. According to the reports, the police took him into custody in Narsaraopet and is suspecting that the violence took place after Subbarao provoked the students. It is learnt that Subbarao is providing training to the defecse job aspirants and he reached Hyderabad on Thursday night. Earlier, the Agnipath Scheme protest turned violent in Secunderabad after the protestors set fire to trains and vandalised the Secunderabad railway station. One person was killed in the police firing during the incident.