Students studying Geography or Environmental Sciences from junior schools to university level, including research work assistant.

Have known Donu for about three years now as a friend and colleague, he is one of the best rare genius in his field.I really believe without a doubt he will greatly improve the academic knowledge of his students. His kind of person and knowledge can't just be ignored.

My Donubari has been my tutor for 3 years. He never gives up on his student. He is diligent, exceptionally brilliant and has the ability to make anyone understand anything.