A 28-year-old man was arrested from suburban Goregaon last night for allegedly posing as a policeman and cheating around 25 persons by promising them government jobs, police said today. The accused, identified as Rakesh alias Sagar Walmiki, allegedly duped 25 persons of over Rs 10 lakh by promising them jobs in various departments of the state government, according to DCP (Crime) Nisar Tamboli. Walmiki was arrested by Unit 10 of Mumbai Crime Branch from his residence in Goregaon (East).