A single door running the full height of a tall cabinet is the hardest door in furniture to hang, and the reason is leverage.
A door hangs from hinges on one edge, and its weight acts through its middle. The further that weight is from the hinge line, and the taller the door, the more the top hinge is being pulled outward from the carcass and the bottom hinge pushed in. On a short door that force is modest. On a door two or three times as tall as it is wide, and carrying a pane of glass, it is considerable and it never stops - it is applied every hour of every year the cabinet stands there.
Two hinges are what most cabinets get, and on a tall door two is what eventually produces the classic complaint: the door drops, the gap at the top opens into a wedge, and it stops closing sweetly.
So our master Indian artisans hang tall doors on three, and place the middle hinge above centre rather than at it. The greatest pull is in the upper half of the door, so that is where the extra support belongs. Set the middle hinge dead centre and it contributes far less than it could.
It is a small decision, made once, that determines whether the door still closes properly in thirty years.