At present, around 30 new projects from Delhi are waiting to be certified as green buildings. The Indian Green Building Council, a Hyderabad-based national body backed by the Confederation of Indian Industry, certifies green buildings according to the U.S. standards. The campus of TERI University, an institution located in Vasant Kunj in South Delhi, has vents around its building that suck in air. The air is then passed through an underground tunnel and released inside. Since underground temperature is lower than surface temperature, air is cooler when it is released inside the building. The under-construction headquarters of Municipal Corporation of Delhi, a 28-storey building, will use solar power for cooling and lighting. Delhi Transco’s building is using bricks of flyash (a waste of coal power generation) for construction.