This report details the Tuntang River Basin Development Plan in the Jratunseluna Basin in Indonesia. The objectives of the report are to: determine existing and projected water and electrical power requirements for the Jratunseluna basin, develop supporting parts of the total water resource potential of the basin and give consideration to the development of already proposed developments, optimize the developments of the two basins on an integrated basis, and layout a development plan utilizing the water resources potential of the two rivers.