Comptroller and Auditor General Vinod Rai on Tuesday trashed the suggestion that the federal auditor's estimate of undue gains to companies caused by the government's failure to auction coal blocks was "fallacious" or "erroneous". "We are incapable of making fundamental errors as being discussed in media. Our report will make clear all doubts on fallacies (that are) being talked about," Rai said at a seminar on 'Public Accountability and the Role of CAG', organized here by the Institute of Public Auditors of India.