Kishida said there were four "pillars" to Japan's new Indo-Pacific plan: maintaining peace, dealing with new global issues in cooperation with Indo-Pacific countries, achieving global connectivity through various platforms, and ensuring the safety of the open seas and skies.
Japan pledged $75 billion to the region by 2030 via private investment and yen loans and by ramping up aid through official governmental assistance and grants.
"We plan to expand the cooperation of the free and open Indo-Pacific framework," Kishida told the Indian Council of World Affairs.
China has ramped up its military presence in the Indo-Pacific and rapidly modernised its navy while promoting its Belt and Road Initiative.
"Giving voice to the priorities of the Global South is an important pillar of our G20 presidency," Modi said after his talks with Kishida.