Economics · Surveys and Indices

With reference to the All-India Debt and Investment Survey (AIDIS) and the Situation Assessment Survey (SAS) of Agricultural Households, consider the following statements: I. AIDIS was originally launched as the All India Rural Credit Survey (1951-52) and later expanded in 1961-62 to cover both debt and investment. II. Both AIDIS and SAS are conducted by the National Statistical Office (NSO). III. AIDIS provides data on household indebtedness and asset ownership in both rural and urban areas, whereas SAS focuses exclusively on agricultural households. IV. The most recent round of AIDIS (77th Round, 2019) was conducted at the request of the Reserve Bank of India. How many of the above statements are correct?