Eleven people have been arrested in connection with violence that erupted during CJP rally in Kolkata on Friday. "None of them are students...They're all troublemakers who engaged in vandalism," Additional Commissioner of Police Kunal Aggarwal said. Those arrested have been identified as Irfan Khurshed, Arshad Ali, Md Moinuddin, Md Alamgir, Imran Ahmed, Zamir Ahmed and Mohsin Khan among others.