Explanation:

- The Gross Domestic Product (GDP) of India is a crucial economic indicator presented by the Press Information Bureau (PIB).

- GDP represents the total market value of all goods and services produced within a country.

- The GDP of India is typically expressed in its national currency for internal economic analysis and reporting.

Option 1: US Dollar

- GDP can be converted into US Dollars for international comparison and assessment.

Option 2: Yen

- Yen is the currency of Japan and is not relevant for India's GDP reporting by the PIB.

Option 3: Yuan

- Yuan is the currency of China, similarly not relevant for the Indian PIB's GDP report.

Option 4: Indian Rupee

- The GDP of India is usually published in Indian Rupees, as it is the national currency.

- It makes understanding and policy-making more practical for the country.