They wanted to protest at suburban Matunga railway station, a senior police official said.
After the police denied them permission, they stormed into the Matunga police station and created a ruckus. Some of them got into a scuffle with policemen, he said.
Students at HCU are currently agitating against resumption of duty by its Vice Chancellor who had gone on a long leave following the suicide of Dalit research scholar Rohith Vemula.