You should read the definition of innovation and read the whole document before questioning. So you found this article and thought you are such a smart person. So this paper is going to install the pump in Nepal, or are you? Read this article carefully. We have never claimed the principle is developed by us, we are bringing it to where it is needed.
http://www.ekantipur.com/nep/2069/1/20/full-story/347096.html