After the passage of the GST bill in Rajya Sabha, it was passed in the Lok Sabha too. Prime Minister Narendra Modi said GST was "crucial" for ending tax terrorism besides reducing corruption and black money. The GST will make consumer the "king", PM Modi said thanking all parties for their support to the Bill. Minutes before the Lok Sabha passed the 122nd constitution amendment bill, Modi called the GST “pro-poor” echoing a plank used by the Congress to demand changes in the NDA’s version of the legislation. After a six-hour debate, the Lower House passed the bill with all the 443 members present voting in favour after AIADMK members staged a walkout while opposing the measure. The government had moved six official amendments, including scrapping of 1 per cent additional tax, to the bill which were approved by the Upper House.

Recalling that August 8 was the anniversary of the Quit India Movement that Mahatma Gandhi launched, Modi said, "this anniversary of August Kranti marks a crucial step towards making India free of tax terrorism. In Parliament, both the PM and finance minister Arun Jaitley maintained the states will gain under GST, brushing aside allegations they will forgo their financial sovereignty.  “States and Centre will be pooling in their sovereignty together and creating a new mechanism which will take all its decision within that pooled sovereignty,” Jaitley said. Describing the passage of the bill as victory of democracy, Modi, while speaking in Lok Sabha, coined the GST in a new manner 'Great Step by Team India', 'Great Step towards Transformation', 'Great Step towards Transparency'.