In the middle of his address in Parliament's special midnight session to launch the flagship Goods and Services Tax, Union Minister Arun Jaitley took a detour down the memory lane; his chosen companion on this little journey - President Pranab Mukherjee. Switching from English to Hindi, Mr Jaitley said, "Mr President, this journey started 15 years ago.... (when) the NDA 1 created a committee that gave a historic report..."