The Congress today said that there will be no roll back in fuel prices and accused the opposition of resorting to political opportunism on the issue. <br/><br/>Speaking to reporters in Parliament, party spokesman Manish Tewari said the opposition should introspect before resorting to such political opportunism. Mr Tewari alleged that they raised prices of petrol 21 times, that of diesel 24 times and that of LPG five times when the NDA was in power.<br/><br/>He said the opposition walkout during Finance Minister Pranab Mukherjee's Budget speech amounted not only to contempt of Parliament but it was also a mockery of democracy.<br/><br/>He appealed to the opposition to adopt a constructive approach towards such sensitive issues related to the economy.<br/><br/>Meanwhile, country's biggest fuel retailer Indian Oil Corporation today said it is losing Rs 107 crore a day on selling auto and cooking fuel below cost .Speaking to reporters, IOC Chairman B M Bansal said the organisation is losing about Rs 107 crore per day on sale of petrol, diesel, domestic LPG and kerosene below imported cost.<br/><br/>He said IOC's losses have been pegged at Rs 16,000 crore and the company has been forced to go slow on new projects.<br/>