Thats a good one. Also as an Indian I didn't know Anaconda, Pariah, Mango, Mulligatawny, etc originated from Indian languages
The British Army uses a bazillion Indian words.
Khaki for pale tan. I think it means dust in Urdu?
Basha for your shelter of a tarpaulin usually suspended from a bush by...
Bungees - stretchy rubber ropes with hooks at the end.
Pukka - proper, the real deal. (Although nowadays good kit is referred to as Gucci)
Dumdums - bullets cut at the tip so they break up on impact. Named after the arms factory at Dumdum.
Bungalow - a house in the Bengal style.
Dumdums: I thought it was more filing the tip down. Causes tumbling, which then causes breakup. Nitpick, maybe I'm mistaken.