West Bengal Chief Minister Buddhadev Bhattacharya has expressed concern at corruption at the highest level of the Government in the country. But , he expressed firm faith at the clean image of the Prime Minister Dr. Manmohan Singh. The Chief Minister was speaking at the inaugural ceremony of the Industrial India Trade Fair in Kolkata today. Without naming any one in particular, the Chief Minister expressed concern at the alleged involvement of politicians and members of the media. He said that such corruption are a result of endemic faults in our system.