The objective of the study is to highlight the impact of GST on economic growth of India which is said to be one of major to taxation refrom Post independence. The study adopted expiratory research model based on Past literature using information from research journals , news Proper and magazine covering wide Collections of academic literature  on India's growth story Post GST  introduced as a 'good and simple tax' on 1 july 2017 by the modi Government is the boldest measure of tax remorse So for India. The major aim of this Paper is to evaluate the major and macro impact of the goods and Services taxes (GST) using a dynamic Computable general equilibrium model  of the India economy GST reforms will improve Specialization in Production of Goods and Service among the major economic Sectors of India by removing distribution of the goods and services, transparency it bring in the tax system will help  to maintain above Seven Percent Continuous growth rate eat pat, investment  and Physical Capital , it  also Promoters expansion in human capital and the Financial system.

KEYWORDS:  GST, India, Dynamic, Growth, Economic, Increase in Reveal Development.