"Passage of the GST bill is a huge boost to Prime Minister Narendra Modi's credibility as a reformer and as a manager of Parliament. Introduction of the GST will likely prove to be a solid boost to the economy—below the estimates of the original 'dream GST' but certainly an improvement over the existing method of taxation," said Richard M Rossow, the Wadhwani Chair in US-India Policy Studies at the Centre for Strategic and International Studies.