Present Indian tax system is very complex as it includes cascading effects of tax. GST, being one single indirect tax scheme for the entire nation will attempt to make India united common market.GST referred as Goods and services tax is major taxation scheme developed for achieving economic growth. However, the proposal of GST was already initiated in the Year 2000 by Vajpayee Government. Though the constitutional amendment is passed by loksabha for it in may 2015 but it is yet to be ratified by Rajyasabha. India needs a strong and defined system of GST to overcome the shortcomings of VAT. This paper highlights advantages, objectives and history of GST.