In India too, discounts and promotional policies are commonly called 'schemes.' I learned the hard way that in the US, the word has a negative connotation when I asked my rental office about any 'schemes,' they looked at me with total shock.

Similarly, "doubt" has a negative connotation in the US, but I see it often used as a synonym for "question" by Indian speakers of English.

That's hilarious! I hope y'all cleared up the confusion quickly.