Goods and Services Tax (GST) is a comprehensive tax levy on manufacture, sale and consumption of goods and services at a national level. One of the biggest taxation reforms in India the (GST) is all set to integrate State economies and boost overall growth. Currently, companies and businesses pay lot of indirect taxes such as VAT, service tax, sales tax, entertainment tax, octroi and luxury tax. Once GST is implemented, all these taxes would cease to exist. There would be only one tax, that too at the national level, monitored by the central government. GST is also different in the way it is levied — at the final point of consumption and not at the manufacturing stage. At present, separate tax rates are applied to goods and services. Under GST, there would be only one tax rate for both goods and services. The goods and services Tax will indeed be a further significant improvement towards a comprehensive indirect tax reforms in the country. Integration of goods and services taxation would give India a world class tax system and improve tax collections. It would end distortions of differential treatments of manufacturing and service sector. GST is expected to create a business friendly environment, as price levels and hence inflation rates would come down overtime as a uniform tax rate is applied. It will also improve government's fiscal health as the tax collection system would become more transparent, making tax evasion difficult. An attempt is made in this paper to study the concept of goods and service tax and its impact on Indian economy. The study also aims to know the advantages and challenges of GST in Indian scenario.