Former U.S. National Security Advisor John Bolton has claimed that the close personal bond once shared between Indian Prime Minister Narendra Modi and U.S. President Donald Trump has now evaporated.

He remarked on the ongoing deterioration in relations between the two nations following the Trump administration's decision to impose additional tariffs on India.

"Trump had a very good personal relationship with Modi. I think that’s gone now, and it’s a lesson to everybody," Bolton said in an interview with British outlet LBC, as quoted by India Today.

He served as Trump’s national security advisor from April 2018 to September 2019.

The Trump administration has petitioned the U.S. Supreme Court to challenge a federal appeals court ruling that deemed most of its sweeping tariffs illegal, according to media reports.

In court filings, the administration defended the tariffs, calling them a "crucial aspect of our push for peace" in Ukraine.

"The President recently authorised IEEPA tariffs against India for purchasing Russian energy products, to address a pre-existing national emergency regarding Russia's war in Ukraine, as a crucial aspect of his push for peace in that war-torn country," the administration wrote.

The Trump administration has imposed a 25 percent reciprocal tariff on India and an additional 25 percent on Russian oil purchases, bringing the total duties on India to 50 percent—among the highest in the world.

Trump has accused India of supporting Moscow’s war in Ukraine by purchasing Russian oil.