GST is a value-based indirect tax which levied on the value added by the supplier. GST has been introduced in more than 160 countries and France was the first to introduce in 1954. In India GST is implemented from 1^st July 2017 with motto of “one nation, one market and one tax”. In Indian taxation history, the introduction of GST brought the revolutionary changes which subsumed all the multiple indirect taxes under a single umbrella. The purpose of present study is to investigate the perceptions of traders and manufacturers towards GST, their satisfaction level from GST’s implementation and significant differences between their perceptions and satisfaction. This study has conducted particularly in three regions i.e. Rohtak, Gurgaon and Faridabad of Haryana state and total 200 respondents were selected on the random sampling basis and t-test was used. The results of the study conclude that 73% of respondents are satisfied from GST’s implementation. This study suggests for successful implementation of GST, government should organize the awareness and training programs to increase the GST knowledge, reduce the technical error of GSTN, expand the digital infrastructure, properly check whether the benefits of reduced cascading effect is passing to end customer or not and reduce the return filing formalities.