Power Grid Corporation of India Ltd. is a central public sector electric utility primarily focused on high-voltage power transmission across India. The company plans, implements, operates, and maintains the inter-state transmission system, forming the backbone of the National Grid and enabling bulk power transfer between generation centers and major load centers. Its core transmission business encompasses extra high voltage and high voltage networks, grid management, and ownership of both AC and HVDC substations, supporting reliable and efficient electricity delivery nationwide. Beyond transmission, Power Grid Corporation of India Ltd. operates a telecom segment that leverages an overhead optic fiber network under the POWERTEL brand, and a consultancy segment providing services in power system planning, design, engineering, procurement, project management, and regulatory advisory. The company also engages in energy efficiency and smart grid initiatives and operates electric vehicle charging stations, reinforcing its role in India’s evolving power and infrastructure ecosystem. Founded in 1989 and headquartered in Gurugram, India, it is widely recognized as the country’s largest power transmission utility.