Came across some study on Informal Economy. If it's anything close to truth, then India's gdp is much larger than the official data.
https://www.worldeconomics.com/Informal-Economy/
Btw, every country has informal economy. Only, the % varies.
US' informal economy is estimated to be at just 7%. China's is at 13%. India's is estimated to be at a whopping 50%!
Pakistan's is at around 30%. Bangladesh's is also around 30%.
According to
this measure, after including the Informal Economy as well as adjusting the
out of date base year , the GDP (PPP) changes greatly:
1. China with $30 Trillion
2. US with $22.5 Trillion
3. India with $15 Trillion
4. Japan with $5.6 Trillion
5. Russia with $5.5 Trillion
6. Germany with $4.8 Trillion
Leaving out the informal economy, India's another problem is the out of date base year. In January 2015, the government replaced the previous base year of 2004-05 with a new base year of
2011-12 for national accounts.
So, we're around 11 years behind for a base year. Once we rebase and include more formal economy, I think reaching $5 Trillion isn't much of an issue.
The issue, however, is making the difference felt at ground level. If we reach $5 Trillion overnight, and people don't feel any change, what's it for? We're going in a good direction, I just hope we do it faster.