On a cabinet this wide the eye reads the vertical lines before it reads anything else, and there is a problem hidden in them.
Between two doors there is a carcass post - a structural member carrying shelves and taking hinges from both sides. At the outer edge of a door there is a door stile - a much lighter member doing much less. Left to their natural sizes, the post would be noticeably wider than the stiles, and across six doors you would get a rhythm of thin-thin-thick-thin-thin that nobody designed and everybody notices.
So our master Indian artisans decide the visible width first and build backwards from it. The structural post is made whatever depth it needs to be, but it is rebated so that only a face of the agreed width shows from the front - the rest of its bulk sits behind the plane of the doors, out of sight.
The result is that every vertical line across the front of the cabinet is the same width, whether it is holding the building up or not.
Nobody looks at a showcase and admires its even stile widths. They just find the cabinet calm rather than busy, and that is the whole objective.