The contribution of Service Sector in India's GDP is approximately _______.

In contemporary Indian macroeconomics, the Service Sector is the largest contributing sector, consistently accounting for over 53% to 55% of the Gross Value Added (GVA) / GDP. In older competitive questionnaires, the answer options fluctuated around $50\%-55\%$. Out of the given options, 50% serves as the closest match to the standard historical baseline in this specific paper context.