And just to add to the note of your conclusions using "GDP per capita", India was/is a populous state and WEALTH distribution was/is uneven. But unlike your conclusion of 'per capita stats, India had a strong middle income class that spurred export based economy and trade. Ans the economy as whole was still producing 25% of Worlds' wealth. If that is not a wealthy nation, nothing is. For about 500-800 years, India has been annexed and its strengths ravaged. Our cultures went into restrospective measures to protect heritage including vedas. Purdahs, Sati remain sore social symbols of these retrogrades. It is only 50 years of rebuilding and we have become an economic powerhouse and growing. If we have willing citizens, we will turn around history one day soon.
I live in the States, but what beats me is the attitude of some residents who justify their immigration implicitly by mudslinging India.