The report starts with overview of global petrochemical sector & comprehensive analysis of Indian petrochemical sector. Next, the report discusses various global benchmarking practices in detail with the pros and cons of each method, identifying the two most relevant methods for establishing baseline for petrochemical sector i.e. the Statistical approach and the Energy Intensity method. Further report deals with the issue of setting a threshold energy consumption level for deciding the Designated Consumer (DC) in petrochemical sector. Last but not the least; report explains the methodology and various statistical models used for arriving at the baseline SEC of few representative petrochemical plants.