Article 366(12A) of the Constitution as amended by 101st Constitutional Amendment Act, 2016 defines the Goods and Services tax (GST) as a tax on supply of goods or services or both, except supply of alcoholic liquor for human consumption. So alcohol for human consumption is kept out of GST by way of definition of GST on constitution. Five petroleum products viz. petroleum crude, motor spirit (petrol), high speed diesel, natural gas and aviation turbine fuel have temporarily been kept out and GST Council shall decide the date from which they shall be included in GST. Furthermore, electricity has been kept out of GST.
