Summary: With the transfer of the economic axis to Asia, the Comprehensive Regional Economic Partnership (RCEP) of the ASEAN-6 countries has taken on new importance. The new mega-groups in the form of a Trans-Pacific Partnership (TPP) in trying to establish APEC, the Transatlantic Trade and Investment Partnership (TTIP), intermittent moves towards accelerating the ASEAN-3 partnership through the Chiang Mai Initiative Multilateral Agreement (CMIM), the proposed East Asia Trilateral Free Trade Agreement between China and South Korea , exclude India from all these initiatives and forums. In this sense, it is essential that a group like the RCEP become fully operational and dynamic. In this context, this contribution highlights the economic interactions between India and Japan and highlights the main conclusions of the India-Japan Comprehensive Economic Partnership Agreement (CEPA). The paper examines the modalities of significant trade coverage, sensitive lists and the formulation of development angle rules of origin in the EPA. These could be essential, particularly with regard to the provision of a negotiating project for the RCEP and the wider regionalism of East Asia. It can be mentioned, however, that India`s partnership with Japan should not be viewed in isolation, but also in the context of partnerships between India, China and India and the United States. Goyal and Japan`s Minister of Economy, Trade and Industry (METI), Hiroshi Kajiyama, met here before Modi`s meeting with Abe on December 16 in Guwahati. Download The Economic Times News app for daily market updates and live news. Keywords: regional economic integration; RCEP; East Asia; India-Japan.