Air pollution has emerged as one of the challenging problems before mankind in the past few decades. In this study, we are going to study the effects of air pollution in an urban and rural area. By collecting pollution data from the pollution control board. This study is being conducted to compare the pollution level from Tamil Nadu and Delhi In this study we are going to study the difference between air population in Tamil Nadu and Delhi region and the cause of pollution in this area. In this study we are going to collect the pollution data from national ambient air quality monitoring program form the already existing set of data and analyses the cause of pollution and the main pollutants in Tamil Nadu and Delhi In this study we examine the influence some of the main pollutants such as Particulate matter (PM10 and PM2.5) Ozone (O3) Nitrogen dioxide (NO2). We will examine the cause of these pollutions in Tamil Nadu and Delhi main aim of this study is to distinguish between the cause of pollution in this area.