India and Japan agreed to deepen collaboration in artificial intelligence, metals, energy, and defence, and to develop a joint roadmap for economic security, as the two Asian countries aimed to further reinforce their partnership.
The agreements were concluded following discussions between Indian Prime Minister Narendra Modi and his Japanese counterpart Sanae Takaichi, who is on a three-day visit to New Delhi.
Japan and India will leverage each other’s strengths to grow stronger and more prosperous together, Takaichi told reporters following the talks, according to Reuters.
She added that, in an increasingly volatile international environment, establishing a mutually reinforcing partnership has grown ever more crucial.
Her trip comes after Modi’s visit to Tokyo last year, during which Japan committed to more than doubling its investment in India to over $61 billion over the next decade, underscoring their deepening economic relationship.
Bilateral trade between the two nations reached $27.5 billion in the 2025/26 fiscal year, while Japanese investment in India totaled $3.2 billion between April and December 2025, according to data from the Indian government.
The two leaders held "wide-ranging talks on the full spectrum of India-Japan ties, including trade and investment, economic security, energy, emerging technologies, defence and people-to-people exchanges", the Indian foreign ministry said.
Both sides adopted three "landmark" documents on economic security, energy resilience and AI, it added.
"The convergence of Japan's precision technology and India's software capabilities will give a new momentum and strength to global AI development," Modi told reporters.
Neither prime minister took questions.
Modi said the two countries, which are also members of the Quad grouping, signed an agreement on their first co-development project in the defence sector.
Australia and the U.S. are the other two members of the Quad grouping, which is widely seen as a bloc formed to counter China's rising influence in the Indo-Pacific region.
Japan is among India's largest investors, backing major infrastructure projects including a high-speed rail corridor between the cities of Mumbai and Ahmedabad.
Japanese firms have also increased investments in Indian companies, including a recent $1.6 billion deal for a 20% stake in Yes Bank.
Takaichi is accompanied by a large business delegation and is due to speak at a business conference later on Thursday.