US President Donald Trump's Indian-American Republican colleague, Nikki Haley, has warned India over its Russian oil purchase and asked to work on a solution with the White House "sooner the better".

According to her, "decades of friendship" would provide a basis to "move past the turbulence" - referring to the ongoing tariff tensions.

"India must take Trump's point over Russian oil seriously, and work with the White House to find a solution. The sooner the better. Decades of friendship and good will between the world's two largest democracies provide a solid basis to move past the current turbulence. Navigating issues like trade disagreements and Russian oil imports demands hard dialogue," she wrote in a post on X.

Haley asserted that the two countries must not lose sight of the "shared goals" - to face China.

"But, we should not lose sight of what matters most: our shared goals. To face China, the United States must have a friend in India," she said.

Ties between India and the US have been strained in recent weeks after the Trump administration imposed secondary tariffs on India for buying Russian oil.

The US tariffs on Indian exports now stand above 50 percent. This is the highest tariff Trump has imposed, according to his latest list, besides Brazil.

India condemned the move and called it "unfair, unjustified and unreasonable".

Prime Minister Narendra Modi also issued a strong message stressing that India would never compromise with the interests of its farmers and fishermen, adding that while he knows he will "have to pay the price", he was ready to do it for farmers.