"You have two sisters."
Translation:तेरी दो बहनें हैं।
I don't know why they wrote tere as i am native spaker we ise tumahare for male and tumahari for female ...tere sounds informal ...
Long story short, in Hindi the word for 'have' (पास) entails a sort of material possession that can't be applied to people. Therefore, the way of saying "You have two sisters" literally translates as "Your two sisters are". When you think about it, it makes sense. If I say "Your two sisters exist" then it must be true that you "have" them as sisters.
A bit unusual, but just a neat quirk of the language (the same is true for brothers, parents, friends, etc.).