India submitted its first Biennial Update Report (BUR), to the United Nations Framework Convention on Climate Change (UNFCCC), towards fulfillment of the reporting obligation under the Convention. As per the provisions of the Convention, countries need to periodically provide information in the form of their National Communication. BUR contains national GHG inventory of India for the year 2010, prepared in accordance with the guidelines of Intergovernmental Panel on Climate Change (IPCC). The inventory covers six greenhouse gases, viz. Carbon dioxide (CO2), Methane (CH4), Nitrous Oxide (N2O), Hydrofluorocarbons (HFCs), Perfluorocarbons (PFCs) and Sulfur Hexafluoride (SF6) and five categories, namely- energy, industrial processes and product use (IPPU), agriculture, waste and Land-use, Land-use, Change and Forestry (LULUCF). As per BUR, India emitted 2,136.84 million tonnes of CO2 equivalent greenhouse gases in 2010. Energy sector was the prime contributor to emissions and with 71% of total emissions in 2010. Energy sector includes - electricity production, fuel combustion in industries, transport and fugitive emissions. Industrial processes and product use contributed 8%; agriculture and waste sectors contributed 18% and 3% respectively to the national GHG inventory. About 12% of emissions were offset by carbon sink action of forests and croplands, considering which the national GHG emissions are arrived at a total of 1,884.31 million tonnes of CO2 equivalent.