Bangladesh Open University is the only public university in Bangladesh that is offering distance education. Established in 1992, it has opened up new vistas in distance education in the country. The objectives of Bangladesh Open University (BOU) are: i) to expand all levels of education, knowledge and science by a diversity of means, including the use of any communication technology and to improve the quality of education, ii) to provide opportunities for education to the general public through mass-orientation of education, and iii) to create efficient and skilled manpower by improving the quality of education in general [9]