Hi Vaishu,
All the best for your interview !
Well , you can go for nice trousers and a shirt. Maybe be dark colour pants like black ,grey and light colour blouse.
Now being winter , you can go for sweaters or turtlenecks....that will give you a smart look too.Nowadays you get sweater with white collar and cuff ,that really gives a smart look and goes well with trousers.
Dont put too much of indian jewellery (like big chains or rings which are too flashy).
Macys always as very nice and expensive stuffs ...but it is Thanksgiving so you might find good deals.
Kohls have decent stuff at decent rate ....so it all depends on your budget.
Some ppl even come in blazers for interview ....that depends on your comfort.
Hope it helps !
Be confident and give your best ...!