Educational Management is a complex human activity in which different resources, both men and material, are brought together and made available to accomplish the cherished goals of the organization. The general principles of management like planning, organizing, staffing, decision- making, coordinating and controlling, directing, reporting, motivating and budgeting are as important in educational management as is the case with any other enterprise. Management of education implies the practical measures that are needed for ensuring the system to work for achieving the objectives of an educational institution. In educational management, there is a paradigm shift from the tacit belief earlier that the principals are senior executives who issue orders and directions to be obeyed by their subordinates, to the view that effective Principals set exemplary standards for both the students and the staff, focus on excellence and inspire all the members of the community to a strong and shared commitment towards the realization of organizational goals. It implies that when the Principal discharges his duties effectively, greater miracles happen in the B.Ed. college; but when they are found incompetent in performing their roles, the learners are hindered from achieving their potentials. The present study makes an earnest effort to understand the managerial effectiveness of their principals is perceived by their lecturers basing on their gender and experience. The investigator have developed the Managerial Effectiveness Rating Scale for assessing the managerial effectiveness of principals as perceived by the B.Ed. college lecturers working in rayalaseema region. For the analysis of data mean, S.D, t-test and graphs have been used by the investigators in the present study. The result of the study concluded that the variables gender and experience of B.Ed. college lecturers significantly differed in their perception about their Principals’ managerial effectiveness.