The police arrested a high school teacher for allegedly misbehaving with a girl student on Saturday. The accused has been identified as Pala Nayak, a social studies teacher at a school in south Bangalore. The girl had complained to her parents that Nayak had taken her photos on his mobile phone. “We have booked Nayak under the POCSO Act,” H.S. Revanna, Deputy Commissioner of Police (South), said.