This document discusses green building concepts and the green building movement in India. It covers the need for green buildings due to their impact on energy consumption and greenhouse gas emissions. The key areas of green building rating systems are described, including sustainable sites, water and energy efficiency, materials and resources, and indoor environmental quality. The green building movement in India is outlined, along with examples like the CII-Godrej Green Business Centre. Green buildings are said to rediscover Indian ethos by addressing the five natural elements of land, water, fire, air and sky. Benefits like rainwater harvesting, reducing the heat island effect, and using recycled materials are covered.