Air pollution is a serious problem in today’s rapidly developing world. Burning of fossil fuels has been the source of air pollution since ages. Coal is a major source of electricity production in India. About 56% of total electricity produced is from Thermal Power Plants (TPPs). In Delhi we have taken 5 TPPs producing about 2800 MW of energy catering to the desire of the nation for this study.Sulphur dioxide (SO2), Oxides of Nitrogen (NOx), Total Suspended particulate matter (TSPM) are the main pollutants emitted from TPPs.