The Police Station in-charge, Om Prakash, had on Februray 21 filed a complaint saying that about 125 people indulged in arson and vandalism the previous evening which resulted in a loss of government property worth over Rs 5.5 lakh.
Police had registered cases against unknown persons and today arrested nine using CCTV footage and other evidences.
SP Abhishek Jorwal said they are trying to trace the hooligans behind the violence using audio and video footage.
Many have been identified. Arrests are being made and nobody involved in the violence would be spared, he said.