Merger of NSSO with CSO to form NSO The National Sample Survey Office used to work under the of the Indian government until May 2019. On 23rd May 2019, the Indian government passed the order to merge the NSSO with the to form the . The Government stated that the NSO will be headed by the . Aspirants reading the topic, ‘ NSSO ’ can also read the following articles linked: NSSO is an organisation under the Ministry of Statistics of the Government of India. What is the full form of NSSO ? NSSO Full Form - The National Sample Survey Organisation or the NSSO conducts socio-economic sample surveys on matters such as education, employment, and health alongside various other factors. The NSSO works under the Ministry of Statistics of the Government of India. The Ministry has two wings, one relating to Statistics and the other Programme Implementation. The Statistics Wing called the National Statistical Office (NSO) consists of the Central Statistical Office (CSO), the Data Informatics & Innovation Division (DIID) and the National Sample Survey Office ( NSSO ).