No one cares what the Indian growth rate was in Rupees.
The Rupee is not an internationally acceptable currency. You can't buy anything with it (except for a very limited direct-swap government-to-government agreement).
The Indian Rupee is not a "hard currency."
Thus, it is irrelevant what the Indian growth was in Rupees. You can't buy Boeing airplanes or machine tools with Rupees.
In contrast, the US Dollar is the world's reserve currency. As a standard benchmark, nominal GDP has always been used to determine the relative size of different economies for countries.
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Nominal GDP estimates are commonly used to determine the economic performance of a whole country or region, and to make international comparisons.
Nominal GDP per capita does not, however, reflect differences in the
cost of living and the
inflation rates of the countries; therefore using a basis of
GDP at purchasing power parity (PPP) is arguably more useful when comparing differences in
living standards between nations."
Nominal GDP is the proper measure to compare the economies of different countries. PPP is probably the more accurate measure when comparing living standards. In this thread, I am clearly comparing the national economic strength of different countries. Thus, nominal GDP (which is set in US Dollars) is the proper measure.
