The study concentrates on the important dimensions of personality traits and their influence on organisational citizenship behaviour. 169 engineers working in the IT sector of small and medium capital companies, with two or more years of
experience in the current organisation is chosen as the sample for this study. Personality traits are measured using Big-Five Inventory (BFI) developed by John, Donahue, and Kentle, 1991; Goldberg, 1992; Costa and McCrae (1992). Organisation
Citizenship Behaviour was measured using the 24-item scale created by Podsakoff et al (1990). Pearson correlation, linear regression and ANOVA are used to analyse the data. The regression statistics revealed that the relationship between ‘personality
traits’ and ‘organisational citizenship behaviour’ is significant. The key findings were that personality traits like extraversion, conscientiousness and agreeableness has a significant impact on organisational citizenship behaviour. The research
sample was geographically limited. The study is quantitative and may be inadequate in accounting for the personal bias of respondents.