NEW DELHI - The US takes terror emanating from Pakistan “very seriously” and the F-16 fighter jets have been given to it to fight terrorism, US Defence Secretary Ashton Carter said on Tuesday.

India has expressed concern over the US decision to sell eight F-16s to Pakistan, with Defence Minister Manohar Parrikar conveying the government’s concerns to Carter, who is presently visiting India.

At a joint press conference with Parrikar, on being asked if the US was trying to be a trusted ally of India while supplying the F-16 fighters to Pakistan, Carter said, “We do try to be trusted partner of India.”

He said the US has given some unique technologies to India. “We don’t have an agreement like that with other countries.”

Asked about the same issue, Parrikar said he did express his concerns to Carter and the US defence secretary assured him the fighter jets would be used to fight terrorism.

Drawing a parallel with India’s relations with Russia, Carter said the US values its relations with Pakistan. “India also has relations with other countries like Russia. We respect that,” he said.

“What we do in Pakistan is directed towards counter terrorism. We too have suffered from terrorism emanating from the territory, more specifically Afghanistan,” Carter said.

“Pakistan has used F-16 in operations in FATA (Federally Administered Tribal Areas). We have approved it. We take terrorism emanating from Pakistan very seriously,” Carter added.

He also said the US did not want any conflict between India and Pakistan.

Meanwhile, the United States and India have agreed in principle to share military logistics, both the defence ministers said, as both sides seek to counter the growing maritime assertiveness of China.

Washington has for years urged New Delhi to sign a Logistics Support Agreement that allows the two militaries to use each other’s land, air and naval bases for resupplies, repair and rest.

India has had concerns that a logistics agreement would commit it to hosting US troops at its bases, or draw it into a military alliance with the United States and undermine its traditional autonomy.

But after years of delays, the two sides said an agreement was in hand, although not yet ready for signing.

“We have agreed in principle that all the issues are resolved,” Ashton told reporters. The two sides would finalise the text of an agreement in coming weeks, he added.

Ashton Carter also held talks with Prime Minister Narendra Modi later on Tuesday as part of his three-day visit, aimed at shoring up security and defence ties with regional power India.

“#SecDef meets with @PMOIndia to discuss the significant progress on US-India defense relationship and innovation,” the US Department of Defense posted on Twitter.

Modi, who enjoys close ties with US President Barack Obama, has in the past criticised what he called China’s “expansionist mindset”.

Prime Minister Narendra Modi’s administration, faced with an assertive China expanding its influence in the South China Sea and into the Indian Ocean, has signalled its desire to draw closer to the United States. China is also a close ally of India’s arch rival, Pakistan.

Modi is also keen to access US technology for his “Make in India” plans to build a domestic industrial base and cut expensive arms imports.

The US military has made clear it wants to do more with India, especially in countering China. Ashton is on his second visit to India in less than a year, aimed at cementing defence cooperation in the final months of Barack Obama’s presidency.

Washington’s desire for deeper security cooperation with India has been tricky without the signing of the logistics agreement, as well as two other pacts that would allow for secure communications and the exchange of nautical and other data. The agreements are considered routine between the United States and its other defence partners.

Reaching the logistics agreement would make it easier to conclude the other two pacts, a senior US defence official said.

“There’s increasing recognition on the Indian side that there’s real mutual benefits to doing them, so I do think that the prospects are good,” the official said, on condition of anonymity.

Ashton said the two countries would also soon conclude an agreement on exchanging information on commercial shipping.

He said the two countries were also advancing collaboration in aircraft carrier design and technology, potentially the biggest joint project since they launched a Defence Technology and Trade Initiative (DTTI) in 2012.

India, which operates a re-tooled Russian-built carrier, plans to build its biggest indigenous carrier, for which is it looking at US technology to launch heavier aircraft.

“We have decided to take forward discussions under DTTI more aggressively on key areas such as jet engine technology. We will also continue our very useful and productive discussions on cooperation ... on aircraft carriers,” Parrikar said.

Both Ashton and Parrikar also agreed to strengthen their cooperation on maritime security.

“Both sides agreed to strengthen cooperation in the area of maritime security,” said a joint statement.

The two sides “reaffirmed the importance of safeguarding maritime security and ensuring freedom of navigation and over flight throughout the region, including in the South China Sea,” said the statement.