Method: A qualitative study by using An Explanatory Research Design, A sample size of 30 People were selected by using convenient sampling technique, semi structured questionnaire was used process the level of knowledge of People on smoking and its effects.

Conclusion: The finding of the study had showed that in Participants indicated that 90% participant were males, 10% of them females.36% of them belong to age group of 21 to 25yrs, 30% of them belongs to the groups of 26 to 30yrs, 13% of them belongs to the age groups of 31 to 35yrs and 20% of them be1ongs to 36 to 40yrs. According to Education group literate 48.97% and 39.50% was Illiterate. Among them 83.33% are exposed to mass media and 16.66% of them were not. It may found 36 to 40 years of age groups has higher knowledge score compared to the other groups regarding smoking and its effects. It shows the on the relationship between knowledge of different age groups regarding heart rate changes due to smoking and its effects. In this the knowledge is higher in those who are exposed to mass media than in those who are not exposed

Result: The finding of the study reveals that 36 to 40 years of age groups has higher knowledge score compared to the other groups regarding smoking and its effects.