The noted economist, however, quickly added that he will not "contradict"
Debroy also said the number of countries with GST is not more than six or seven, even as some "rubbish" figures of about 140-160 countries having GST are floating around.
The Niti Aayog is a government think-tank mandated to advise on policy matters.
Debroy said the Indian GST is not an "ideal" one because of the country's federal structure while a multiple rate structure was also a problem to the new tax. "When you see figures floating around, there will be 1-1.5 per cent increase in GDP after implementation of GST. For God's sake, that is utter rubbish," Debroy said while speaking at a session during the GST Conclave organised by Hindi news channel Aaj Tak.
"For an imperfect GST, I have no idea what the figure is. It might be even more, it might be less, but this particular figure (1.5 per cent) was for ideal GST," he said.
"That figure was based on the model that the
The moderator pointed out to him that Jaitley and
"That's rubbish. There are many countries in the world which have VAT, a VAT is not the same as GST. VAT is the stepping stone towards GST.