I am very excited that Prof. Donald C. Johanson, one of the most significant paleoanthropologist alive today has answered my question.
I enrolled to a course in edX named "Human Origins" conducted by him. I had the opportunity to ask him few questions and in one of it he has mentioned my name. I feel very much privileged.
I thank edX and Arizona State University for creating this opportunity for people around the world to interact with Prof. Don Johanson and learn a lot from him. The course was very interesting for me.