Japan on Monday backed India's membership bid to join the elite Nuclear Suppliers Group, which is opposed by China.
Prime Minister Narendra Modi and his Japanese counterpart Shinzo Abe during their summit talks also sought "expeditious and meaningful" reforms of the United Nations.
"After India's full accession to three international export control regimes, the two leaders pledged to continue working together for India's membership of the Nuclear Suppliers Group, with the aim of strengthening the global non-proliferation efforts," according to the India-Japan Vision Statement issued after the talks.
India is already a member of the Australia Group, the Wassenaar Arrangement and the Missile Technology Control Regime.
"India and Japan seek expeditious and meaningful reforms of the United Nations, in particular the comprehensive reform of the United Nations Security Council, to make it more legitimate, effective and representative, taking into account the contemporary realities of the 21st century," it said.
India, Japan, Brazil and Germany have formed the G4 grouping to support each other's bids for permanent seats on the United Nations Security Council.
The two leaders also expressed their determination to accelerate the process of UN reforms, including the launch of text-based negotiations in the intergovernmental negotiations in the 73rd session of the UN General Assembly, it added.
Modi and Abe welcomed recent developments in the Korean Peninsula, including the US-North Korea Summit at Singapore in June and three inter-Korean Summits this year as a step towards the comprehensive resolution of the outstanding issues regarding North Korea. -- PTI