Kolkata, May 08: For the first time, four persons were penalised at Mahatma Gandhi road metro station here today for smoking and spitting on the platform and track bed, metro railway sources said. All four persons were caught red-handed by a team of railway officials led by superintendent of the station who were monitoring the situation since action against such offences were effective from may one. An amount of Rs 250 was realised towards penalty from each of the four held, the sources added. Bureau Report