Leadership is also frequently described as a quality or set of skills related to the capacity to persuade, inspire, and direct a group toward a desired result. The fundamental idea behind leadership is a dynamic process that has altered over time and is always evolving (Dambe & Moorad, 2008). Thus, be it in the government or the private sector, it is essential for the Managers or officers to possess the required attributes of leaders to increase organizational performances. The personnel agency of the Bhutanese civil service, Royal Civil Service Commission (RCSC) have been putting commendable effort in the leadership development projects for the all civil servants. A similar step towards the civil service reform was initiated by assessing the civil servants in the highest position level of Secretaries (EX1), Director-Generals (EX2), Directors (EX3) and the Chiefs (P1M). The assessment is known as Leadership Assessment Test (LAT) for executives and Executive Eligibility Assessment (EEA) for the Chiefs. A mixed method research study was conducted and after carefully studying and analyzing the data collected and inferences drawn, it was found that the assessment was successful in achieving its objectives to make accountability as the measure of the service. It is known that such assessment need to be implemented further to other levels within civil service after carefully scrutinizing and eliminating any loopholes in current assessment.