population (around 127 crore and above)2. exceptional increase in electricity use compared to the last decade.3. increase the amount of electricity production (up to 53 GW)4. globalization which means many industries. The electricity consumption load is increasing. So the load on generation and transmission lines is also increasing. So these few numbers tell why we need the smart grid. Figure: Information and communication technology infrastructure for electric power system Smart grid is the concept of a network equipped with advanced features such as advanced security, self-healing process and self-decision capability. SCADA system networks are well built and follow the strict infrastructure and for bulk power network it uses IP based technologies. This SCADA network architecture consists of data models, application layer, middleware and transport function for transmission. The middleware works to ensure performance. The number of domestic consumers and industrial consumers is increasing day by day. So in this case the cost of transmission lines increases, which means economic loss for any state. So the smart grid provides functionality where, at lower costs, it will provide electricity to domestic consumers and industrial consumers through a single transmission, which means economic growth for any