Thank you for the nice words about the formulation of the blade choorа.
You can see in the figure from the catalog Egerton T-shaped cross section of the blade? Or Egerton somewhere wrote about T-shaped cross section of the blade knife № 624?
The handle of the Egerton's example is not identical to the handles of Afghan classical Chooras. This is evident if you look closely the picture. It looks like only the overall shape. You do not know that in India there were other knives with a narrow (thin) handles?
I understand that everyone sees what he wants to see

But it is worth a closer look.