Hi Andy,
If you trust Pant on this one, the hilt type is either from Sind or Delhi, although I have a feeling, that the slim hilts with the, not very big, saucer shaped discs, with the short not too thick quillons, would be from Sind.
The fluted design on the handle, and the ‘straps’ bound around the handle at the top and at the bottom, most likely is reminiscence from the very old hilts made of wood, where the fluted design represents leather or other material, wound around the hilt, kept in place by the ‘straps’.
The blade looks European to me, but it is hard to say, so as you have the sword, I will take your word for it, if you say it is Indian made, copying an European blade.
Nice tulwar
.
Jens