Before GST, there were many indirect taxes like VAT, service tax etc. The cost of a product was varying according to taxation slab of the particular state. Some retailers were selling their products at high rates. These things were harming the economy. To avoid this, the introduction of GST was done by Indian government. It is observed that after the implementation of GST, the economy of nation has increased as all the indirect taxes have been removed and direct tax is coming under government. The cost of manufacturing has also reduced due to lesser complexity in taxes. The circulation of black money has also controlled due to GST. The current paper highlights the impact of GST on Indian economy.