Whistleblowing is ‘the disclosure by organization members (former or current) of illegal, immoral, or illegitimate practices under the control of their employers, to persons or organizations that may be able to effect action’. Organizations rely heavily on the employees who raise their concerns against wrongdoings, mainly because of huge damages involved with the human and economic costs. More than ever before, organizations are realizing the importance of whistle-blowers in keeping the evil at check. Kurt Lewin (1939) had contended that human behaviour is a function of personality and the environment. Personality stands for all the causal factors that reside within the individual person and environment stands for all the causal factors that reside in the world outside the individual. Hence, in this study, we have selected two important variables representing ‘personality’ and two important variables representing the ‘environment’ as possible antecedents to whistleblowing.