Dagar, an interaction design graduate of the National Institute of Design (NID), came up with the idea for the phone three years ago.

CNN: Braille smartphone in development

You can catch Dagar's TED Talk from 2011 here.

CNN: Braille smartphone in development

While apps like Siri and SayText do offer a good deal of assistance, 2011 TED Fellow Sumit Dagar had an idea for a more effective solution: a smartphone that's specifically designed for people who have trouble seeing.

CNN: Braille smartphone in development