Very good observation Jeff has made on the bolsters, which indeed do correspond to the Bukharan style in degree which made me think of the Uzbek, Afghan shashka's, as well as Khyber knives. While the blade appears to be of Indian form, the spines seem consistant with this feature on Central asian blades. It seems these in varying degree are on the backs of the immortal 'Black Sea yataghans'
and sometimes on Khyber knives ?
The zoomorphic hilt does seem like some of the parrot head forms that Rsword mentions! and with the Indian form blade added, I think we're headed for the NW Frontier on this one. The pierced work on the chape seems more Afghan to me, and it seems I've seen it on numerous tulwars and Khybers.