बात कर रही हैं आप

you are talking about

→ बात

phrase Rare #12,539

you are talking about बात करना means “to talk about.” रही is used when addressing a woman; आप is respectful “you.”

HI: आप किस किताब की बात कर रही हैं?

EN: Which book are you talking about?

What are you talking about?

— Ramprasad Ki Tehrvi (2021)

I mean, what you're saying is wrong.

— Tribhanga (2021)