The pacts, which also covered technology and promoting the use of renewable energy, were announced after Prime Minister Narendra Modi and his Canadian counterpart Mark Carney hailed a fresh start in the relationship between their nations.

"Our ties have seen a new energy, mutual trust, and positivity," Modi said.

Carney's visit is a key step forward in ties that effectively collapsed in 2023 after Ottawa accused New Delhi of orchestrating a deadly campaign against Sikh activists in Canada, accusations India rejected.

"There has been more engagement between the Canadian and Indian governments in the last year than there has been in more than two decades combined," Carney said in New Delhi, in a speech alongside Modi.

"This is not merely the renewal of a relationship. It is the expansion of a valued partnership with new ambition, focus, and foresight, a partnership between two confident countries charting our own course for the future."

Energy-hungry India -- the world's most populous country with 1.4 billion people -- has ambitious plans to expand nuclear power capacity from its current eight to 100 gigawatts by 2047.

"In civil nuclear energy, we have struck a landmark deal for long-term uranium supply," Modi said, adding the countries would also work together on small modular reactors and advanced reactors.

Carney said they had agreed the launch of a "strategic energy partnership with significant potential" including CAD$2.6 billion (US$1.9 billion) uranium supply agreement "supporting India's nuclear ambitions".

Carney added that Canada was "well positioned to contribute, as a reliable supplier" of liquefied natural gas (LNG), from its west coast.

"As India seeks access to critical minerals for its manufacturing, its clean-tech, and its nuclear plants, Canada's resource base and world-leading companies position it as a strategic partner," he said.

The two countries agreed last year to resume negotiations on a proposed free-trade deal, the Comprehensive Economic Partnership Agreement.

"Our target is to reach $50 billion in bilateral trade," Modi said. "This is why we have decided to finalise a comprehensive economic partnership soon," he added, saying it "will open new opportunities to invest and create jobs in both countries."