This is s study on parliamentary committee system of Bangladesh. Drawing a theoretical framework this study examines how committee system works in a parliament where the political institutions, at least partly, have been imposed from outside rather than being fully indigenous. Though many favorable preconditions were adopted in the Constitution of Bangladesh, parliamentary system of government could not successfully work in the initial years of the independence. The political government was eliminated quickly through a bloody military coup in 1975. After the collapse of the military-authoritarian government, Bangladesh embarked upon a new democratic journey in 1990. Since the restoration of the parliamentary system of the government in 1991, committees have been serving as the extended working arms of the parliament.  This study examines the pattern of performances of committees in the post-1990 parliaments. Examining the different dimensions of the working of committees, this study finds that they are now better poised to conduct their legislative and overseeing tasks. However, the absence of democratic principles within the party structure discourages the legislators from being proactive in the committees. Analyzing the committee structures and procedure of the selected developed and developing countries, it explores the lessons that Bangladesh can learn from them to make the committee system more effective