‘Nabanna chalo’: Police use water cannon to disperse bjp workers during the party’s state-wide agitation; See Pics Newsroom Staff 4 years ago Police use lathi-charge and water cannon to disperse BJP workers during the party's state-wide 'Nabanna Chalo' agitation against the alleged killings of its workers in a state, in Kolkata on Thursday. Police use lathi-charge and water cannon to disperse BJP workers during the party’s state-wide ‘Nabanna Chalo’ agitation against the alleged killings of its workers in a state, in Kolkata on Thursday. BJP workers take part in a Party’s ‘Nabanna Chalo’ agitation against the Mamata Banerjee government, in Kolkata on Thursday. Police use lathi-charge and water cannon to disperse BJP workers during the party’s state-wide ‘Nabanna Chalo’ agitation against the alleged killings of its workers in a state, in Kolkata on Thursday. Police use lathi-charge and water cannon to disperse BJP workers during the party’s state-wide ‘Nabanna Chalo’ agitation against the alleged killings of its workers in a state, in Kolkata on Thursday. Police use lathi-charge and water cannon to disperse BJP workers during the party’s state-wide ‘Nabanna Chalo’ agitation against the alleged killings of its workers in a state, in Kolkata on Thursday.