Power Grid Corporation of India Limited is an electricity transmission company that designs, implements, operates and maintains interstate transmission systems and telecommunications and consultancy services. The company's segments include broadcasting services, consulting services and television services. Transmission Services is engaged in bulk electricity transmission in various states of India consisting of Extra High Voltage/High Voltage (EHV/HV) networks. Consultancy Services provides consultancy services in the transmission, distribution and telecommunications sector, including design, engineering, load transmission, optical ground wire (OPGW) in the interstate transmission network, procurement management, operation and maintenance, financing and project management. It uses OPGW additional optical fibers that are placed in the transmission network to provide telecommunication services to various customers. Its Smart Grid enables real-time monitoring and control of the electrical system.