US will work with whoever is India's next prime minister

"We have something like 113,000 Indian students studying in the US just this year, which I think is second only to China."

"So certainly at the people-to-people level, we think there is great room to keep working together, again, which benefits both of our countries," Harf said.

"On all of these issues we're going to keep working together, whoever the winner ends up being. So we will continue watching the process and we will wait and see," she added.

Asked about BJP's reference to changing India's nuclear policy in its manifesto, Hasrf said: "Well, I think what we're doing right now is waiting to see the outcome of the election and to see what the government looks like.

"And we'll work with whoever it is, and we'll talk on the whole range of issues we always talk about, and I think we'll take issues as they come then. I don't want to get ahead of the process of the election."