INTRODUCTION 1.1 BACKGROUND The power sector of India is the fifth largest in the world. The power sector has grown enormously from the installed capacity of 1363 MW during independence in August 1947 to 258701.46 MW as of 31st January 2015. Of this, 180361.89 MW i.e. 69.71% of the generated energy comes from thermal power plants which emit large amounts of greenhouse gases and enhance global warming. The...