Every year students in India vie for places at the nation's premier science universities. The colleges are known collectively as the Indian Institutes of Technology. Across the country, hundreds of thousands students take the entrance exam. But only a tiny handful -- about the top two percent -- are accepted.

One math teacher has had extraordinary success getting his students in, despite the fact that many come from extreme poverty. From the northern city of Patna, reporter Peter Aronson has the story.

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