The incident happened this afternoon when a group of protesters led by state coordination committee, an organisation of state government employees affiliated to the CPI(M) marched to Bikash Bhavan in Salt lake area to submit a deputation demanding hike in salaries and pensions.
The activists were stopped by the police near Bikas Bhavan following which a scuffle broke out. The police has to use force to control the crowd during which some activists and police personnel were injured.