India is the second largest populous country in the world witnessing the massive change in terms of technological advancement to meet the increased energy demand and smart cities taking a quantum jump and a necessity to counter climate change and revamp the old Electric Grid System. Moreover the fossil fuel based power plants are environmentally extravagant. These have forced our Government and public & private electric utility companies to transform the conventional power system into smart power system which not only supply the good quality of power but also with fault tolerant, resilient and enhanced efficiency.