The Bureau of Energy Efficiency was established in 2002 to promote energy efficiency in India through various regulatory and promotional functions. It aims to reduce energy intensity in the Indian economy through schemes targeting appliances and buildings, as well as sectors like agriculture, municipalities, and small/medium enterprises. State Designated Agencies were created under the Energy Conservation Act to assist the Bureau in coordinating and implementing programs at the state level through activities like awareness campaigns, capacity building, and overseeing demonstration projects. Their role is important for enforcing energy efficiency measures and informing stakeholders at the grassroots level.