It all part of Darwins theory of evolution. Life in tropics was much easy than life in artics. Throw a stone up in air and there would be a nice luscious coconout to eat. While things were dead in artics. SOme one had to invent steam power to prevent their blood from freezing. It was finally james watt. Now- Wetsetrn countries (which have cold sub zero temperatures) have progrssed and maintain a much confortable lifestyle now. India is still poor.
I had to become a engineer or a doctor. I had no choice. If someone points a gun point blank on to me, I can do anything, I can even get a phd in math.
We are now jealous of the progress the west has made. SO we are trying to work harder. SImple, An indian brain is no different than any other human brain. Just the effect of evolution and environment. DOnt get fooled by the numbers- I am not too sure about the quality of indian engineers. Evolution will take time. Indian cant dominate the world overnight. Indians would dominate if the environmental evolutionary conditions contnue to exist.