Finance Minister Arun Jaitley today launched a scathing attack on Congress after former Prime Minister Dr Manmohan Singh described the management of demonetisation as a monumental failure.<br/><br/>He said it was during UPA rule between 2004 to 2014 that maximum black money was generated in the country. <br/><br/>Talking to reporters outside Parliament, Mr. Jaitley said several scams and scandals occurred during the previous regime including 2G and coal block and those parties who were once a part of scandals are now opposing demonetisation. <br/><br/>He rejected Dr. Singh's claim that GDP growth will dip due to it saying demonetisation will have positive impact on economy in medium and long term. <br/><br/>Mr. Jaitley added that the government is convinced that it has taken a right step against corruption and black money.<br/><br/>The Finance Minister accused opposition of not being keen on having a debate on demonetisation and is only interested in disrupting the proceedings of both the Houses.