I'm not arguing it should be used in a particular way. On the contrary, I am specifically not insisting that the Telugu speaker and his grandparents' less specific use of kura is incorrect simply because it resembles the mostly more recent (and seldom pejorative, FWIW) use of its British English cognate.

"Chips" is an interesting example to bring up, because the word means completely different preparations of potatoes in different parts of the Anglosphere...