Here are Twitter reaction on the mega launch:
# Dharmendra Pradhan
At the stroke of the midnight, when all Indians are awake along with the people from East to West, India marches towards
# Shahnawaz Hussain
Congrats to the Indian Parliament, PM Narendra Modi and FM Arun Jaitley on achieving the Goal of One Nation One Tax
# Sadananda Gowda
It is a historic and emotional moment in central hall of parliament during the launch of GST the New Tax administration system
# VK Singh
Historical moment for economic reform- launch of GST in Central hall of Parliament
# Dr Jitendra Singh
Privileged to be witness to this historic midnight moment at Central Hall of Parliament
# Jayant Sinha
Historic moments in Central Hall of Parliament with GST being launched for the benefit of our beloved country!
# Harsimrat Kaur Badal
As rightly put by PM Narendra Modi ji GST is a Good & Simple Tax that will reduce corruption and tax burden; & will increase transparency.
# M venkaiah Naidu
Congratulations India for embarking on the path of a Good, Simple Tax, GST. It's a historic moment.
# Suresh Prabhu
GST will pave way for economic unification of the country by replacing layers of indirect taxes with one single tax
GST For New India -- a reform that is in the interest of the citizens, traders, businesses, industry & future of the Nation.
A new chapter in Indian history is being written tonight. One Nation One Tax is the biggest tax reform since independence.