It is the largest organization conducting socio-economic surveys in India. Its nation-wide surveys on various socio-economic aspects include: Follow-up enterprise surveys of the Economic Census. Fieldwork relating to the Annual Survey of Industries (ASI). Supervision of area enumeration, crop estimation surveys conducted by state agencies under the Improvement of Crop Statistics scheme. Urban Frame Survey with a view to preparing a frame of compact units of urban areas as the first stage sampling units (FSUs), Organizing methodological studies and pilot surveys on important subjects and collection of price data from rural and urban sectors. The organization functions under the overall direction of a Governing Council with requisite independence and autonomy in the matter of collection, processing and publication of National Sample Survey (NSS) data.