GST would apply whenever a supply of such goods is made by any person, i.e. manufacturer supplying to distributor, or distributor/dealer supplying to retailer, or retailer supplying to individual consumer. Further, the manufacturer/wholesaler/retailer would be  entitled
to  input  tax credit on GST charged  by  his  supplier in accordance with the Input Tax Credit provisions in GST.
A supplier availing threshold exemption or composition scheme would be entitled to exemption or composition rate, as the case may be, in usual manner.