Portuguese Prime Minister Costa tweeted this is an excellent opportunity to review the implementation of the accords agreed during his India visit and sign new agreements.
"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 an Indian official tracking the progress of the drone discussions in the run-up to the visit.
Prime Minister Narendra Modi is expected to spend almost five hours with US President Donald Trump in order to know each other well, forge a strong personal bond and take forward a solid bilateral relationship when they meet at the White House on Monday.
He will be on a day's visit the Netherlands on June 27. Earlier President Trump and PM Modi have spoken twice over telephone after the former assumed office.
It comes as Mr Trump intends to curb the number of H-1B visas issued, as a way of boosting domestic employment.
"That shows the kind of leaders they are: Both are innovators; both are business executives", said the administration official, who spoke on condition of anonymity to preview the visit. "The goal is to provide a shared environment to support research and foster new climate, earth, space and marine research" SAID AN OFFICIAL RELEASE.
Trump signs 'historic' bill to transform VA
The measure ensures that VA employees who are terminated will not remain on the VA payroll while appealing their terminations. The Veterans Accountability and Whistleblower Protection Act passed the house by a 368-55 vote earlier in June, CNN reports .
The two sides have stepped up efforts in recent weeks to get inter-agency clearance for the sale of the Guardian drone, made by California-based General Atomics.
The H-1B visa programme has been the most favoured route by IT companies to send Indian engineers to the U.S., and the Indian IT industry has always been accused of misusing the current system to send more people to the United States, it added. "You have effortlessly gelled with the culture of the country you have been", he said.
"This is an ongoing process, and we will continue to do it, as long as we continue to find skilled people".
"And last year's designation of India as a major defence partner was extremely important, and I think we'll see a concrete expression of this important designation during this visit" added senior white house official.
Mr Modi will also discuss the Defence Trade and Technology Initiative, launched in 2012 during the Obama presidency, to expand trade in defence material between the two countries.
On the economy, India and USA bilateral trade has almost doubled in the past decade, to US$115 billion, but the trade deficit of US$30 billion remains a matter of concern.