A presentation on How Gross Domestic Product (GDP) is measured or calculated using the popular methods of Income Approach, Expenditure Approach, Value Added Approach, Consumption Approach, Production Approach. Also explained is how economic system works. Concepts like Real GDP and GDP Deflator are also explained. Helpful for students preparing for IAS, UPSC, CFA, MBA, and other finance, management and capital market related courses. GDP calculation in India, GDP deflator, How GDP is calculated in India, how to calculate GDP