An absconding gangster P. Guna alias Gunaseelan (34) and two of his associates were arrested by the city police here on Wednesday. A car said to be used by the gangster, and cash were seized by the police. Guna against whom several murder, attempt to murder, and kidnap cases had been registered in different police stations, was intercepted a few hours after he robbed Rs.5,300 cash from a businessman here by showing explosive substances and sharp weapons.