So many whites in brownface. The film seems to live in its own little bubble, partly filmed in India but without a single Indian in the cast.
And the sense of unreality doesn't stop there. Two Americans play British without even trying for a British accent. Every single English playing Indian doesn't bother trying for Indian accents, and half the "Indians" they don't even bother putting makeup on.
But they sure pile on the brown makeup on Ursula Theiss, almost as heavy as her dayglo red lipstick. They also pile on the makeup on the sole nonwhite, Syrian actor Michael Ansara, when he would be far more believable without it.
The result is this film is far from "rousing." You find yourself amused rather than offended, even while it shows all Indians as ignorant, evil, violent, superstitious, and treacherous. The one exception of course is Theiss, who plays a South Asian version of Pocahontas who just loves all them white guys.
Again, it's too goofy to be offensive. You'll be amused at Rock Hudson beating up half a dozen Indians with soggy leaves. You'll laugh at the obvious stunt doubles. And let's not forget the conveniently bad shooting of Indians unless they are loyal to the British.
IRL the "Sepoy Mutiny" was the First War for Indian Independence. It was spontaneous and by average Indian soldiers. Here it's an oh so evil plot by a scheming rajah who fools the gullible Indian soldiers who deep down really really love their white officers. As propaganda this is so clumsy.