The GST Council meeting slated for September 19 has been postponed to October 5, sources said on Friday.The 42nd meeting of the Council has been postponed since Parliament would be in session, they added.The Centre had last month decided that the 41st and 42nd meeting of the Council would be held on August 27 and September 19. However, then the dates for the monsoon session of Parliament was not decided.The October 5 meeting assumes significance as the Centre and states are at loggerheads over the issue of funding Rs 2.35 lakh crore GST collection shortfall.