The incident occurred this afternoon when a group of around seven workers attacked the hawkers outside the station, a Vashi police station official said.
"We have registered a case of rioting against them and process to arrest them is underway," he added.
Yesterday, MNS workers and hawkers had clashed near suburban Malad railway station in Mumbai.
After MNS chief Raj Thackeray addressed a rally in south Mumbai earlier this month over the death of 23 people in a stampede on the staircase of the foot overbridge (FOB) at suburban Elphinstone Road railway station last month, MNS workers took upon themselves the task of removing hawkers from station premises.