I mean we know it's in the relative present as the UC series seems to play in the current world (give or take)
But the garments, in particular the dupatta
(according to wiki) are definitely quite old: "The word dupatta is a combination of 'du-' meaning two, and 'patta' meaning strip of cloth, originally from Sanskrit.[2]
Early evidence of dupatta veil or scarf can be traced to the Indus valley civilization, where the sculpture of the Priest King whose left shoulder is covered with some kind of a chaddar, suggests that the use of the dupatta dates back to this early Indic culture.". So yeah, pretty much existing before all this xenophobia BS we have today.
Accents are super hard to get right to be fair, at least in a way that they're understandable by the general audience and easy to recognize. For example, the film
Silence (will release early next year) is supposed to be based on Portuguese missionaries going to Japan and, in short, getting "rekt". In any case, the Portuguese accents shown in the trailer are just awful and competely inaccurate. "Fewreiwra" is not you say "Ferreira". But again, accents (accurate ones) are hard. So I can't really give them much crap because of it.