The burden of Asthma in developing countries such as India is of sufficient magnitude to warrant its recognition as a priority in government health strategies. Particular resources need to be provided to improve the care of disadvantaged groups with high morbidity, including certain racial groups and those who are poorly educated, live in large cities, or are poor. The present study was conducted to find out current prevalence of asthma in subjects attending multi specialty centre OPD Ballimaran, Delhi. Attempts were also made to detect possible factors contributing to the prevalence. A total of 1000 subjects were included in the study using questionnaire, clinical evaluation by physician and spirometry. The current prevalence of asthma in male population of Delhi was 13.42% and in female population 12.41%, respectively. The prevalence of asthma was more (13.42%) in male population than female population (12.41%) respectively.