U.S. President Donald Trump has announced additional 25% tariff on India for its purchases of Russian oil, bringing the combined tariffs imposed by the United States on its ally to 50%.

Indian exports to the U.S. now face a hefty 50% tariff, jolting longstanding efforts by both Washington and New Delhi to deepen ties.

Former US Undersecretary of Commerce for International Trade and senior foreign policy expert, Christopher Padilla, has warned that the ongoing trade tensions could pose a risk of long-term damage to the India-US relationship.