Hey Madtech,
I do not want to argue with you but I think it is a false accusation to make that he does not pronounce some nepali words well. In fact, I think he has paid special attention to pronunciation for eg.  instead of saying "akarsan"  like most Nepalese would do he says "Akarshan." Just because he has sung the english lines well does not mean he has not done justice to the nepali words. I would suggest that you listen to the song once again. I think we have very few talented singers and I think he will be one of them. Instead of finding faults in baseless things we should give them credit that they deserve. I think he has done an excellent job both with the composition and the rendering. What do you guys think?