India was one of the largest economies in the world from the end of the 1st millennium BC till the beginning of British rule in India. India’s share of global industrial output declined from 25% in 1750 to 2% in 1900 and its share of the world GDP was down to 2.7 % in 1947. Currently, India’s economy at $2.87 trillion accounts for a 4.7% share (PPP) of world GDP.