Just googled "churi" and came up with this Pakistani weaver's knife. 
Also turned up this definition:
“Churi” in Nepalese means “Knife”. It literally means a domestic or household cutting tool used to benefit a user.
Edited to add this link:  Perhaps it is a Chugri? 
 
http://www.yoniversum.nl/dakini/churi.html
n2s