Adolescence is a critical period for mental health and identity formation which appears to be influenced by their relationships with parents. This semi-experimental study focused on the difference, what positive and negative parenting make in the adjustment of adolescents. 500 adolescents were randomly recruited from Meerut and Ghaziabad for this study. Parent Adolescent Relationship Scale of Bhardwaj, Sharma and Garg, and Adjustment Assessment Inventory, of Saxsena (1983) were used to collect the data. By using t-test data was analyzed, which revealed that adolescents brought up with positive parenting were found to show significantly greater adjustment at home (t= 2.49; ρ < 05), health (t= 2.13; ρ < 05), social (t= 3.76; ρ < 01), emotional (t= 2.42; ρ < 05), school (t= 2.00; ρ < 05), and overall (t= 3.52; ρ < 01).