GST is a comprehensive indirect tax on the supply of goods and services throughout India that will replace existing taxes levied on goods and services by the central and state governments. It is expected to simplify and harmonize the indirect tax regime in India and provide a more efficient system of tax administration. Key benefits of GST include a wider tax base through elimination of cascading of taxes, simplification and rationalization of tax rates and structures, and improved compliance. The proposed GST model in India will follow a dual GST model with taxation powers shared between the central and state governments.