National Income of India is estimated by........

Economic Affairs Growth and Indicators

National Income of India is estimated by

production method alone.

expenditure method alone.

production and expenditure methods.

production,expenditure and income methods.

The total value of final goods and services produced by the normal residents during an accounting year, after adjusting depreciation.

It is Net National Product (NNP) at Factor Cost (FC)
It does not include taxes, depreciation and non-factor inputs (raw materials)
National income of the nation could be calculated using three different techniques. The techniques are the Product Method, Income Method, and Expenditure Method.

Hence option 4th is correct.