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 chose that phrase because the pitfall/prison portrayed in the movie is [Mehrangarh Fort][1], located in India. So, I guess Nolan would be use the **Hindi** chant.


  [1]: https://en.wikipedia.org/wiki/Mehrangarh_Fort