I found a dagger that my great grandfather left in a box of stuff from the war, and I have asked around on other websites and all I have found is what the words say.
"
The first phrase is "Daeg taeg fateh" which means victory to "degh and tegh"; the second phrase is "bihrd kee paaej" or "protecting the honour or respect of the old or elderly" "and the third phrase is "Panth kee jeet" or "victory to the panth or ‘followers of the righteous path’"

The word "degh" means "large cooking pot" or "cauldron" or an "offering". The word "tegh" means "sword" or "kirpan". The term "degh tegh" refers to the concept of "degh" which is the serving of food to the community as in respect of the Langar; and "tegh" which is the protecting the liberty and rights of each member within the community."
It is a slogan from a common Sikh Prayer.

I know that Sikh helped the Allies, but they usually carried Kirpans (religious daggers with a curve) and this one isn’t curved.

https://m.imgur.com/gallery/0wRhD ( a few pictures of the knife, if more are needed I am willing to provide more.)