Jens has posted a very similar knife here, also with reliable Indian provenance:
http://www.vikingsword.com/vb/showthread.php?t=12274
Accordingly, in light of Jens' example, as well as laEspadaAncha's example above, I am happy to retreat from my arrogant comment that my knife was "clearly SEA". I should know better.
If anyone knows who can translate the writing on the ivory handle of my knife, I'd be grateful.