Uttar Pradesh Chief Minister Yogi Adityanath today ordered an investigation into last night's violence at the campus of Banaras Hindu University or BHU, in which a woman protester was beaten up by policemen. A video of the assault, showing two policemen thrashing the woman with batons, was widely circulated. In the evening, the police detained more than a dozen protesters who were trying to hold a march near the university premises. The students were let off later. Following the violence, the university advanced its holidays, starting it from tomorrow instead of September 28. Other colleges in Varanasi have been shut too.