This document compares the GRIHA and BREEAM green building rating systems used in India and the UK. GRIHA was established in India in 2007 and evaluates buildings based on criteria like energy, water, and materials. BREEAM was developed in the UK in 1990 and rates buildings on categories like management, health, energy, and land use. The document provides details on the origins, criteria, and adoption of each system. It also summarizes case studies of the Suzlon One Earth building in India, which received GRIHA and LEED certifications, and the MET Office building in the UK, which achieved high ratings under the BREEAM In-Use assessment.