NEW DELHI - A surge in food prices ripped the common man's pockets as the UPA government paid for its failure in the assembly polls in four states and may feel the heat in next year's general elections as well if it is not controlled. Prices of kitchen essentials such as onions spiked to a record Rs 100 per kg and tomatoes touched Rs 80 in some states during the year, pushing the food inflation to double digit mark, even as the Reserve Bank tried in vain to contain the price rise.