CPI General Secretary A B Bardhan has alleged that the Centre used CBI to overcome the cut motion moved by Left parties against its policies in Parliament. Speaking at a public meeting at Thrissur in Kerala last night, he said, the Congress-led UPA government succeeded in keeping the small parties along with them by using the CBI as a weapon. Referring to the spiralling food prices, he said, Union government is not taking any steps to deal with black- marketers and check forward trading of food grains. The senior leader blamed Centre's policy for the spurt in prices. He said, rising prices of essential commodities, growing unemployment and corruption have made the common man's life miserable. Criticising the Food Security Act, Bardhan said, the proposal to supply 25 kilogram rice to below poverty line families at three rupees per kg was a farce as it would cover only a marginal population.