After its success in Delhi, CNG was to be introduced in all polluted cities, especially Lucknow, which records SPM levels equal to Delhi.But political interference is keeping the green fuel away from people despite being readily available.On an average, the Suspended Particulate Matter (SPM) count in Lucknow is 400 micro grams per cubic metre, the same as Delhi. That too when Lucknow's vehicular population is one tenth of that of Delhi.