12-hour Bengal Bandh protest: BJP leader Locket Chatterjee detained by Kolkata Police

BJP leader Locket Chatterjee has been detained by Kolkata police during a '12-hour Bengal bandh' following the Nabanna Abhijan violence. Protests called for CM Mamata Banerjee's resignation. Security has been tightened, and government bus drivers were seen wearing helmets. The ruling Trinamool Congress claims BJP is attempting to create anarchy.