A student rally organized by the KSU in Shillong turned violent on August 21, leading to the torching of vehicles and damage to public statues.
Police have filed 15 FIRs and arrested three KSU leaders, including the president and vice-president, who are now in 14-day judicial custody.
The Chief Ministers of Assam and Meghalaya have issued a joint appeal for peace as the Meghalaya High Court directed the government to expedite further arrests.