I don't know what that article says, but I can tell you right now there is such a thing as dual citizenship in about half the countries on the planet.
If you're a citizen of more than one country, you get to vote in both countries' elections.
Indians get to vote. Deal. We're up by 9K votes with only 27 precincts left, by my last count.
Thune leads by 7825 with 27 precincts left.