Japan has been contributing to the socio-economic development of Nepal since 1954. Japan has been assisting Nepal in the form of bilateral grant, bilateral loan, multilateral aid and technical assistance. Japan has been assisting Nepal for the promotion of peace and democracy by contributing to the socio-economic development of the country. The major areas of Japan's economic cooperation have been human resource development, social sectors including health, agriculture development, infrastructure development, environment protection, water supply, culture, etc. Japan also provides concessional loan for the infrastructure development in Nepal. Tanahun Hydro and Nagdhunga tunnel projects are ongoing projects under this scheme.