Successful treatment for Perinatally Infected Adolescents (PIA) faces physical challenges like the risk of co-morbidity, deferred growth, and development, often resulting in late puberty in girls, and stunting/wasting makes it difficult to reach the transition phase of adulthood. The study aims to identify the correlation between ART adherence with nutritional status and QOL and find the association between adherence scores with selected demographic variables among adolescents. A randomized Controlled Trial design was adopted. Through simple random technique, a total of 388 HIV-infected adolescents were divided into experimental (195) and control (193) groups. The data were collected from four ART clinics in Chennai, India, through standardized ART adherence, QOL, and structured nutritional assessment questionnaires. Motivational counselling was given to the experimental group, and the researcher demonstrated selected asanas. The data were collected from both groups at ‘0’, ‘3’ & 6-month intervals. Descriptive & inferential statistics were used for the analysis of data. Regarding correlation, in the experimental group, baseline assessment showed poor correlation, but in the 3rd & 6th months there was a fair and moderate correlation found and was significant at p=0.05** and P=0.001*** respectively. Whereas in a control group, throughout the assessment period showed that, there was a poor correlation. Regarding association, showed adolescents' age, sex, sex of caregivers, relationship with adolescents, and residence were found significant. Motivational counseling along with asana has a positive correlation to ART adherence to promote the health and well-being of adolescents in the experimental group than in the control group. Keywords: Adherence, Correlation, HIV-infected adolescents, Nutrition, Quality of life.