The National Income of India is estimated by :

National Sample Survey Organization
Ministry of Finance
Reserve Bank of India
Central Statistical Organization

The correct answer is (d) Central Statistical Organization (CSO).

The CSO is the nodal agency responsible for the collection, compilation, analysis and dissemination of statistics in India. It is a part of the Ministry of Statistics and Programme Implementation (MoSPI). The CSO estimates the national income of India on a regular basis. The national income is a measure of the total economic activity of a country in a given period of time. It is calculated by adding up the value of all final goods and services produced in the country during that period.

The CSO uses a variety of methods to estimate the national income. The most common method is the income approach. This approach involves adding up the incomes of all individuals and businesses in the country. The CSO also uses the expenditure approach and the production approach to estimate the national income.

The national income is an important indicator of the economic health of a country. It is used to track economic growth, inflation, and unemployment. The national income is also used to make decisions about government policy.

The other options are incorrect.

(a) The National Sample Survey Organization (NSSO) is a government agency that conducts surveys on a variety of topics, including employment, income, and expenditure.

(b) The Ministry of Finance is responsible for the formulation and implementation of the government’s fiscal policy.

(c) The Reserve Bank of India (RBI) is the central bank of India. It is responsible for managing the country’s monetary policy and regulating the financial system.