National Sample Survey Office (NSSO) was set up by the Govt. of India in 1950 to collect Socio Economic data implying scientific sampling methods. NSSO used to conduct country-wide survey in the form of round to collect information on various Socio-economic aspects of the people for various scheme and policy formulation. DES, Assam has also been participating in this national venture in equal matching sample basis since 14th Round of NSS, 1958-59. The current round i.e. 79th Round of NSS started from July 2022 and ended on June 2023 on Comprehensive Annual Modular Survey (CAMS) & survey on AYUSH (Ayurveda, Yoga, Unani, Naturotherapy, Sigdha, Sowa-Rigpa/Amchi, Homeopathy). Some of the recent rounds of NSS surveys are as under:
| Sl No | Round | Survey Period | Subject | FSUs allotted to state |
|---|---|---|---|---|
| 1 | 66th Round | July,2009-June,2010 | Consumer Expenditure Type (I&II), Employment-Unemployment. | 432 |
| 2 | 67th Round | July,2010-June,2011 | Unincorporated Non-agricultural Enterprises Excluding Construction. | 488 |
| 3 | 68th Round | July,2011-June,2012 | Consumer Expenditure Type I &II), Employment-Unemployment. | 432 |
| 4 | 69th Round | July,2012-Dec.,2012 | Drinking Water, Sanitation, Hygiene and Housing Condition, Particulars of Slum. | 280 |
| 5 | 70th Round | Jan.,2013-Dec.,2013 | Land and Livestock Holdings, Debt and Investment, Situation Assessment Survey of Agricultural Household. | 280 |
| 6 | 71st Round | Jan.,2014-June,2014 | Social Consumption : Health, Social Consumption: Education | 282 |
| 7 | 72nd Round | July,2014-June,2015 | Domestic Tourism Expenditure | 468 |
| 8 | 73rd Round | July,2015-June,2016 | Unincorporated Non-agricultural Enterprises Excluding Construction | 516 |
| 9 | 74th Round | July,2016-June,2017 | Verification of List Frame Establishment, Survey of Services Sector | 3969 |
| 10 | 75th Round | July,2017-June,2018 | Household Consumer Expenditure, Household Social Consumption: Health and Household Social Consumption: Education | 468 |
| 11 | 76th Round | Jan,2018-Dec,2018 | Drinking water, Sanitation, Hygiene & housing condition, Survey of Person with Disabilities | 300 |
| 12 | 77th Round | Jan,2019-Dec,2019 | Land & Livestock holdings of Household & Situation assessment of Agricultural Households, All India Debt & Investment | 304 |
| 13 | 78th Round | Jan,2020-Dec,2020 | Domestic Tourism Expenditure, Multiple Indicator Survey | 472 |
| 14 | 79th Round | July,2022-Jun,2023 | Comprehensive Annual modular Survey & Survey on AYUSH (Ayurveda, Yoga, Unani, Naturotherapy, Sigdha, Sowa-Rigpa/Amchi, Homeopathy) | 614 |