(a) What is GDP – The value of final goods and services produced in each  sector during a particular year provides the total production of sector for that year. And the sun of the production in the three sector is called the Gross Domestic Product or GDP.

(b) Measuring of GDP- The task of measuring GDP is undertaken by a Central Government ministry. The ministry with the help of various government departments of all the Indian states and union territories, collects  the information relating to the total volume of goods and services and their prices and then estimates the GDP.

(c) Importance of GDP- The GDP of a country shows the size of the economy of the country. This reflects whether the country is poor or rich and the status of employment and people.