[video width="640" height="360" mp4="https://i.samaa.tv/wp-content/uploads//usr/nfs/sestore3/samaa/vodstore/digital-library/2016/04/IK-METRO-MONTAGE-30-03.mp4"][/video] PTI Chairman Imran Khan had criticised Chief Minister Shahbaz Sharif for launching the expensive Metro Bus service, promising a ‘cheap’ bus service – a pledge he could not honour.