Bangladesh Bureau of-statistics (BBS) is the national statistical organization responsible for conducting censuses and surveys and disseminating different statistical data in all the sectors of the economy' BBS has conducted a survey entitled Literacy Assessment Survey (LAS) for the second rime of its kind. The literacy assessment survey was conducted throughout the country in 73, 204 households of 3350 Primary Sampling Units (PSUs) from 17th to 28m November, 2011 with the budget from the Government. This survey provided valid, reliable and interpretable data on adult literacy status of the country' A set of instruments were developed by BBS under this assignment which can be used in future. The data generated through the survey will also be helpful for planners, policy makers, researchers, students and academicians.