BETTIAH, May 5 -- Bihar's Harpur police on Sunday arrested three people, including an ambulance driver, and seized a huge quantity of ganja which was being ferried by the carriage from a place in the district. Police further said that seven bundles of the ganja weighing 78 kilograms were seized from an ambulance near Barharwa petrol pump under Harpur police station area of East Champaran district on Sunday. The seizure of narcotics and the arrest of the three persons were confirmed by superintendent of police (SP) Swarn Prabhat....