Earlier quoted context omitted.
The JEE exam in India is very advanced, I doubt most Europeans or US students could pass it, even after a year or two at university. So those who enter IIT are already quite good very early.
IIT colleges in themselves are not even in top 100 Universities of the world. If you train a lion in a circus, it won't be the king of the jungle. So if we were to believe your statement: > I doubt most Europeans or US students could pass it, even after a year or two at university. than this allegedly miraclous students are wasting there talents studying in IITs!
I say this, having studied at a European university as well as visited IIT and a top US university. These are different traditions with different strength and weaknesses but my point was not to say that IIT is better, it was to put the OP comment into a context.