The Police resorted to lathicharge, used water canons and lobbed teargas shells to disperse the agitating Left Front activists.
Joint Commissioner of Police (Headquarters) Kolkata Police, Rajiv Mishra told reporters that 25 police officers including Special Commissioner-II and two Deputy Commissioners of Police were injured in the clashes and were admitted to different hospitals.
"Left activists acted in a pre-planned manner as they carried stones and brickbats," Mishra said adding, 2,500 police personnel were deployed and they acted in a restrained manner.
Left Front chairman Biman Bose said he was injured and alleged that the police behaved as "volunteers of the Trinamool Congress."
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"More than 110 LF activists are injured and admitted to hospitals. Many women activists too were injured in the police lathicharge. Old people were also not spared. We condemn this barbaric act by the police on a peaceful protest march," senior LF leader Manoj Bhattacharya said.
The CPI(M) affiliated All India Kisan Sabha (AIKS) along with ten other Left Front affiliated peasant fronts organised the march to the secretariat, Nabanna, in support of their 17-point charter of demands including issues such as farmer suicides and rehabilitation of farmers affected by the recent floods in the state.
He claimed Biman Bose was injured in brickbats thrown by his own party men.