(i) Participated in the naming ceremony of Very Large Crude Oil Carrier (VLCC) of Shipping Corporation of India (SCI) in Hyundai Heavy Industries Shipyard Complex, South Korea in January, 2005; (ii) Assiduously campaigned for the early ratification of Kyoto Protocol in the capacity of President of Conference of Parties (COP), UNFCCC; (iii) Organised the 8th Conference of Parties to the United Nations Framework Convention on Climate Change in New Delhi from 23rd October to 1st November 2002, the Conference was represented by 80 countries at the level of Ministers of Environment, the Conference culminated in adoption of Delhi Declaration on Climate Change; (iv) Led the Indian delegation to World Summit on Sustainable Development held in Johannesburg, South Africa from 26th to 30th August, 2002; after intensive deliberations, the Summit adopted a Political Declaration and Johannesburg Plan of Implementation for furthering the international action for promoting sustainable development; (v) Participated in several International Conferences/Seminars as the Minister of State for Petroleum and Natural Gas, Minister of Environment and Forests and Minister of Shipping, Road Transport & Highways; Chairperson, Transport Ministers of SAARC countries, 2007-2008