French president Emmanuel Macron and Indian prime minister Narendra Modi on Tuesday vowed to "act jointly" in the Indo-Pacific region, as a row intensified with Australia and the US over a ditched submarine contract.
Macron's telephone talks with Modi were timed conspicuously as French anger over an Australian cancellation of a submarine contract in favour of US submarines as part of an alliance with Washington and the UK appeared undiminished.
US officials have said US president Joe Biden is seeking a phone call with Macron to ease tensions, while Macron has taken the unprecedented step of recalling France's ambassadors to Australia and the United States.
The French presidency said Macron and Modi agreed they would "act jointly in an open and inclusive Indo-Pacific area".
Macron assured Modi of France's continued "commitment to the strengthening of India's strategic autonomy, including its industry and technology base, as part of a close relationship based on trust and mutual respect".
The statement from Macron's office said their shared approach was aimed at promoting "regional stability and the rule of law, while ruling out any form of hegemony".
Calling Macron "my friend" in a tweet, Modi said India placed "great value on our strategic partnership with France".
Modi's office added in a statement that both countries had an "important role" for stability and security in the Indo-Pacific region.
AUKUS, the new three-way strategic alliance between Washington, Canberra and London is seen aimed at countering the rising power of China.
Paris has in the last years sought to tighten ties with India: In 2016 the two sides signed a multi-billion dollar deal for 36 French Rafale fighter jets for New Delhi.
While the agreement is under investigation in France over kickback allegations, it is viewed as a commercial and diplomatic success for Paris.
Indian media have speculated that Australia's cancellation of the submarine deal could spark a French-Indian submarines agreement.
France seeking 'clarification'
France accused its allies of a "stab in the back" after learning the US had secretly led talks about the new strategic alliance and struck the deal for the delivery of American nuclear-powered submarines to Australia.
Australia informed France only hours before pulling out of the submarines deal, according to the French government.
In the upcoming call with Biden, Macron will demand "clarifications", his political advisor Stephane Sejourne said on Tuesday, adding it would not be "a reconciliation talk".
He said the way the French-Australian deal was cancelled raised many questions "including about the concept of what it means to be an ally of the Americans".
Behind the scuppered contract were deeper differences about strategies in the Indo-Pacific, he said.
France, which has a presence in the region through overseas territories such as New Caledonia, has been trying to calm down tensions in the area, but "the United States is in more of a confrontation with China", Sejourne said.
French defence ministry spokesman Herve Grandjean wrote on Twitter that the reneged deal was "bad news" for Australia.
"The first Attack submarines were to be delivered by 2030. With this new AUKUS partnership, it will be more like 2040. That's a long time, when you see how fast China is militarising," he said.
European ministers rallied around France as the submarines dispute threatened to delay trade talks with Washington and Canberra.
German Europe minister Michael Roth said France's diplomatic crisis with the US was a "wake-up call for all of us" to unite an often divided EU on foreign and security policy.
French submarine maker Naval Group has started talks about a financial settlement with Canberra, the French defence ministry said.
Naval Group had already completed 900 million euros ($1.1 billion) worth of work on the submarines, it said, but suffered no losses as the work was covered by Australian payments already made.
But calling the pull-out "a betrayal", the ministry said the talks would now determine the size of "compensations and damages" owed by Australia.