Congress leader P. Chidambaram on Saturday asked if the operating ratio of Indian Railways is the worst and added that if the ratio is close to 100 per cent or has exceeded it, that indicated a "comprehensive failure of management."He also asked if it was true that the accounts are being "dressed" to show an Operating Ratio just a little less than 100 per cent."What is the Operating Ratio of Indian Railways in 2017-18? Is it the worst ratio in recent years," Chidambaram tweeted."Is it correct that the true Operating Ratio has exceeded 100 per cent? Is it correct that the accounts are being 'dressed' to show an Operating Ratio just a little less than 100 per cent," he asked."If the Operating Ratio is close to 100 per cent or has exceeded 100 per cent, that indicates a comprehensive failure of management of the Indian Railways," Chidambaram said.