NAA’s investigation arm will continue to function in some form under CCI. The official said that the move will reduce the multiplicity of regulators as CCI can handle cases independently. The plan is to transfer cases to CCI after NAA’s term ends. Why This Transfer? NAA’s role is to make sure that the benefit of tax rate reduction reaches the consumer immediately. This has been the role of NAA primarily because the GST council has been rejigging the rates in the last five years. NAA has little to do when rates go up.