A descriptive study “to assess the adherence to DOTS therapy and its impact on quality of life among clients registered at selected DOTS centers of Punjab”. The objectives of the study were to assess the adherence to DOTS therapy among patients who were registered at selected DOTS centers in Punjab, to identify the problems related to adherence among the patients, to assess the impact of DOTS therapy on the quality of life of patients registered at selected DOTS centers of Punjab, to assess the association between adherence to DOTS treatment and socio-demographic variables. A quantitative research approach was designed, and 100 subjects were selected through convenient sampling. The results of the study showed that the majority of the subjects (56%) were non-adhered, while 44% adhered to DOTS treatment. The results revealed that the majority of the subjects 74(74%), felt the unpleasant effects of medication, and 97(97%) felt weird on medication. While 83(83%) subjects felt negative feelings such as blue mood, despair, anxiety, and depression, the majority of the subjects 83(83%) were not satisfied with their health status. Findings revealed that the most affected domain of quality of life was the environment domain (21.41±2.68), physical domain (19.36±3.21), and psychological domain (16.31±1.87). Whereas the social domain is 7.60±1.66 lowest. The study emphasized the need to strengthen adherence to DOTS therapy among the subjects and then reduce the impact of tuberculosis on quality of life.