The present study was conducted with an aim to find the effectiveness of modified Dialectical behaviour therapy (DBT) with borderline personality traits (BPT) in Pakistani population. Experimental research design was used, in which one control group and one experimental group were taken having 34 subjects in each group. DBT was applied with experimental group whereas, treatment as usual (TAU) was provided to control group. The experimental group received 16 individual therapy sessions, along with firstfollow-up and second follow-up after every four months and completed a one-year duration. Findings of the study have revealed that Dialectical behaviour therapy remained quite efficient in treating borderline personality traits, according to Gul, Mahmood Borderline Personality Traits Scale (GMBPTS) at pre, mid, post, first follow-up and second follow-up assessments.