This report is a part of the China and India Energy Efficiency report series that emerged from the High Impact Opportunities studies supported by t the UNEP DTU Partnership in China and India. In India, the study was carried out by the Indian Institute of Ahmedabad (IIMA) and Energy Efficiency Services Limited (EESL), New Delhi. The other two reports published on India are Best Practice and Success Stories on Energy Efficiency in India , and High Impact Opportunities for Energy Efficiency in India. This report, Enhancing Energy efficiency in India: Assessment of sectoral potentials , presents a model based assessment of the potential for improvements in energy efficiency in key sectors of the Indian economy. It also identifies a set of short, medium and long term High Impact Opportunities for energy efficiency, which in combination with various technological options and policies, have potential to provide required future energy services much more efficiently. The process of identification of HIOs included stakeholders’ consultation and f experts opinions on the potential for scaling up the identified technological and policy options.