Noise levels beyond the limits are said to be noise pollution. Preventive measures are adopted by legislation by prescribing noise level, that is to be maintained at different zones in a city. In the present investigation, the noise levels in various parts of Patna city in India have been studied. Due to increase in industrial growth, population migration has constantly increasing day by day. Hence, it is important to measure noise levels as it may be major concern to know the impact of noise pollution. The noise level recorded has been compared with the Noise Pollution (Regulation and Control) Rules, 2000. The study area has been categorized in to 4 zones, such as residential zone, silent zone, commercial zone and traffic zone. The obtained results revealed that noise exceeds the permissible limit almost in all zones. The present study results are compared with the literature on noise levels in other cities in India. © 2014 - Kalpana Corporation.