In this Thursday, May 24, 2012 photo, Prof. Anil Gupta, center, walks with volunteers during their Shodh Yatra (Journey for the Search of Knowledge) in the Sehore district of Madhya Pradesh, India. For more than two decades, Gupta has scoured rural India for its hidden innovations, motivated by the belief that the most powerful ideas for fighting poverty and hardship won't come from corporate research labs, but from ordinary people struggling to survive. The 59-year-old management professor says he gets no financial benefit from his finds, reveling instead, with almost childlike joy, in the process of discovery itself. (AP Photo/Rafiq Maqbool)