They chanted like,
Dey-shey dey-shey Bah-sur-rah bah-sur-rah.
If we translate the chant to Hindi, which closely means,
"long live, long live".
I think, Nolan would be chosewould've chosen that phrase because the pitfall/prison portrayed in the movie is Mehrangarh Fort, located in India. So, I guess Nolan would be useusing the Hindi chant.
