New Delhi, Aug. 1 -- A US official said on Thursday that differences between the US and India cannot be resolved overnight to arrive at a trade deal. He cited geopolitical disagreements to support his argument.

"Our challenges with India, they've always been a pretty closed market... there are a host of other kind of geopolitical issues," the US official was quoted by Reuters as saying.

"You've seen the president express concern about, you know, membership in BRICS, purchases of Russian oil and that kind of thing," the official added.

While saying there were constructive discussions with India, the official said: "These are complex relationships and complex issues, and so I don't think things can be resolved overnight with India."

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