The relationship between need for achievement (n-Ach) and the enactment of social roles was investigated under two experimental conditions namely (1) neutral and (2) success failure (S-F). Subjects were 32 male students. 16 representatives to the University students union, constituted, the experimental group (leader,) and 16 non-leader students of under-Graduate and post-Graduate classes, the control group. The n-Ach and level of anxiety were assessed by using 4 TAT Cards and Sinha Anxiety Scale, respectively. Results indicate that Leaders have significantly higher n-Ach than non-leaders in both the experimental conditions. The leaders display a negative relationship between n-Ach and anxiety in both neutral and S-F conditions, whereas non-leaders display positive relationship in the critical S-F condition and become significantly more anxious than leaders in this condition. It is suggested that learning and assumption of some achieved roles, such as the leader's role is facilitated by strong n-Ach.