LAHORE , Nov 9 (INP) Punjab Chief Minister Shehbaz Sharif on Thursday asserted that the biggest hurdle impeding the development of the country is corruption and lack of fair accountability system. Talking to media persons at during his visit to Allama Iqbal’s mausoleum on 140th birth anniversary of the poet philosopher, Shahbaz Sharif said we have to review what steps have been taken to stop corruption till now,” he said. Punjab CM maintained that corruption worth billion of rupees has been done in the country and everyone knows who is behind it. INP/AH