India is currently the fifth largest economy in the world. The top four are US, China, Japan and Germany. An S&P Global report had earlier this month projected India's economy to double to USD 6.7 trillion by 2031, from USD 3.4 trillion currently. "India is already the world's fifth largest economy and it is the largest country by population. India's rate of growth by any measurement is much faster than the top four. Today we can safely say that all four are likely to have lower growth rates than India in the foreseeable future.