Congress today launched its nationwide protest against demonetisation, with party workers gathering outside Reserve Bank of India offices at several locations. The party hit out at government for not restoring cash flow even after 70 days since demonetisation and questioned the autonomy of RBI. <br/><br/>Senior party leader Anand Sharma led the workers in the protest in Delhi. He asked whether any preparations were made ahead of note ban to ease the trouble of the common man.