NEW YORK: The United States is expected to approve India’s purchase of a naval variant of the Predator drone, a source familiar with the situation said, as Prime Minister Narendra Modi tries to revitalise relations with Washington when he meets President Donald Trump for the first time.

Securing agreement on the purchase of 22 unarmed drones is seen in New Delhi as a key test of defence ties that flourished under former President Barack Obama but have drifted under Trump, who has courted Asian rival China as he seeks Beijing’s help to contain North Korea’s nuclear programme.

The deal would still require approval by Congress. California-based General Atomics, the maker of the Guardian drone sought by India, declined to comment.

Modi’s two-day visit to Washington begins on Sunday. Trump met Chinese President Xi Jinping in April and has also had face time with the leaders of nations including Japan, Britain and Vietnam since taking office in January, prompting anxiety in New Delhi that India is no longer a priority in Washington.

The Indian navy wants the unarmed surveillance drones to keep watch over the Indian Ocean. The deal would be the first such purchase by a country that is not a member of the Nato alliance.

“We are trying to move it to the top of the agenda as a deliverable, this is something that can happen before all the other items,” said one official tracking the progress of the drone discussions in the run-up to the visit.

India, a big buyer of US arms that was recently named by Washington as a major defence ally, wants to protect its 7,500- km coastline as Beijing expands its maritime trade routes and Chinese submarines increasingly lurk in regional waters.

But sources tracking the discussions say the US State Department has been concerned about the potential destabilising impact of introducing high-tech drones into South Asia, where tensions are simmering between India and Pakistan, particularly over Kashmir, which is divided between them.

Other strains have emerged, with the United States vexed by a growing bilateral trade deficit and Trump accusing New Delhi of negotiating unscrupulously at the Paris climate talks to walk away with billions in aid.

US officials expect a relatively low-key visit by Modi, without the fanfare of some of his previous trips to the United States.

Published in Dawn, June 24th, 2017