Executive summery Data quality assurance is a collective term for the procedures that are used to maintain the integrity of data that is housed within various databases. Often, the process of maintaining data quality requires such tasks as removing obsolete information, cross-referencing relevant information found in different databases, and in general making sure there are no inconsistencies with the information found within a database or a set of databases. This type of data cleansing is an ongoing process that is considered a key element of efficient data administration. Suchana is a large-scale program to prevent malnutrition in children in Sylhet division, Bangladesh by improving the livelihoods and nutrition knowledge of poor and very poor households. Currently Suchana is being implemented in 70 unions the smallest administra