my initial impression is indo-nepali as well. the sword of shiva design on the blade, and the brass bindings on the scabbard is found on khukuris.
edited: i thought it looked familiar, so i did a 'search' - see
This Thread, my post no. 9. it appears to be another chainpuri churi (knife).
p.s. - chainpur is a village in nepal, churi means 'knife', the kami who made the one in my post was from chainpur.