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Visually impaired Indian students take the Intermediate (10+2) economics examination on laptops at an examination centre at Shamshabad, on the outskirts of Hyderabad on March 16, 2011. Netra Vidyalaya Junior College provides free education exclusively for low socio-economic blind students. The question paper was scanned and recorded in the laptops of 29 students who listened to the questions through their headphones and typed the answers. By Noah Seelam/AFP/Getty Images.

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