India’s efforts to secure U.S. tariff relief are being complicated by continued Russian crude purchases by state-owned refiners, offsetting a pullback by private buyers.

US President Donald Trump brought up his relationship with Indian Prime Minister Narendra Modi during the House Republicans' Retreat being held at the Kennedy Center on Tuesday (local time).

"I have a very good relationship with him. He's not that happy with me because you know they're paying a lot of tariffs now because they're not doing the oil, but they are, they've now reduced it very...