India’s UJALA Story – Energy Efficient Prosperity” – by Energy Efficiency Services Limited (EESL) and the International Energy Agency (IEA) is a case study of the Indian Government’s domestic efficient lighting programme – the Unnat Jyoti by Affordable LEDs for All (UJALA – meaning light in Hindi). The programme is implemented by EESL, a super Energy Service Company (ESCO) under the Ministry of Power, Government of India. UJALA, the world’s largest zero-subsidy LED bulb programme for domestic consumers, is an extraordinary example of successful energy efficiency programmes. UJALA is a market driven initiative, with strong policy support from the government. It is an example of a self-sustaining government initiative that has not only surpassed traditional benefits, like energy savings and reduced carbon emissions, but has also triggered large scale investment in the manufacturing of LED bulbs, generated employment and other macro benefits.