I also figured that Padma and Parvati were born in Britain but their parents or grandparents came from India. I think it's really interesting that one was sorted into Gryffindor and the other into Ravenclaw. Perhaps one parent belonged to Gryffindor , and the other to Ravenclaw?

I also think it's interesting that in the movie they're clearly fraternal twins. I believe the actors who play Fred and George are fraternal twins too, but I still can't tell them apart, lol :)