All I can offer is that the Raja Puri likely isn't....or maybe mine isn't.
My Raja Puri has leaves that join their stems like a Balbisiana in that they don't taper into it.
If your leaves truly do taper into the stem instead of joining at a 90° angle or even looking like the top of a heart, I would say you have joined the vast club of mislabled nanner owners!
Good luck on figuring it out!
P.S. I also think that most Raja's get a bit more of a swollen stem by that age.
Jay
