The growing engagement comes amid shifting global geopolitics, the Russia-Ukraine war and rising US tariffs, which have brought India and Japan closer. Japan was among India's largest sources of foreign direct investment (FDI) equity inflows in the first half of 2026, investing $6.26 billion during January-June, according to government data."The India-Japan investment corridor is witnessing remarkable momentum, driven by global economic realignment, changing supply-chain strategies and India's strong growth prospects," said Rudra Kumar Pandey, partner and head of Japan desk at Shardul Amarchand Mangaldas & Co.