Kolkata, Oct 01 (ANI): Left supporters on Thursday staged a protest over law and order situation in Kolkata outside police headquarters. The supporters clashed with the Police when they were stopped about a kilometer away from the police station. Police resorted to lathi charge to disperse the crowd. A woman suffered injuries on her head during lathi charge outside the police headquarters. According to reports, the rally was organized to protest against the West Bengal government's attempt to stifle the voice of democracy of the people of the state. Reportedly, the Left Front also demanded immediate withdrawal of more than 300 false cases against its workers.