How did India become an economic powerhouse for over two millennia, before it hit the current blip of an economic under-performer in the last 200 years? There is enough evidence to show that India had one of the largest economies for over two millennia, if not longer. Was India the world’s biggest economy? Did India control 24% of global trade? Since global data-keeping is a recent development, it would be hard to state the exact size of the Indian economy. Although there are books and research papers that attempt to put an estimate of the Indian economy through the ages, the records are really patchy. However, the point is not the exact size of the Indian economy, but the fact that India was a very large and powerful economy.