hypothetical situation:: India doing operation in pakistan

Although I know what you are trying to achieve by posting such question but its not that hard to understand.

Ever heard of "Jis kee Lathee uss kee bhains"

In Pak-US relationship, US holds the lathee unfortunately (and to your disappointment?), in India-Pakistan relationship, Indian does not own such Lathee.

Having said that no one is "OK" with US killing people in FATA and no one should be ok with India killing people anywhere in the country

and whats your take on it? btw, India never said that terrorist belongs to "Karachi" but I don't wana go in that discussion yet although you seem quite happy with the unfolding scenario as you have not only "assumed" it but also looking forward to explore the "hypothetical situation"