The three arrested persons will be produced at a court during the day, he said.
The activists, who were trailing the truck carrying Adhikari along with Hooghly MP Locket Chatterjee and Rajya Sabha member Swapan Dasgupta, had allegedly raised the slogan holding BJP flags and the Tricolour in Rathtala area here.
BJP spokesperson Samik Bhattacharya said that the party does not endorse the slogan raised by the participants holding the BJP flag.
