The correct answer to the question is option 4 - Cuttack. The Indian Rice Research Institute is indeed located in Cuttack. It is one of the premier agricultural research institutes in India, specifically focused on rice research and development. Cuttack is a city in the state of Odisha, in eastern India. The institute conducts various research and experiments to develop new rice varieties, improve yield and quality, and address challenges related to pests, diseases, and climate change. It also provides training and advisory services to farmers and helps in the dissemination of improved rice cultivation practices. Cuttack was chosen as the location for the institute due to its favorable climatic conditions and its agricultural importance in the region.