The Indian economy is largely dependent on a few key sectors, which comprise the major share of the country's GDP. The following are the major sectors contributing to the Indian economy, along with the top contributors to the Indian economy and their percentage share in GDP:

• Agriculture: Agriculture is the backbone of the Indian economy, employing over 50% of the country's workforce. It contributes around 15% to the country's GDP.
• Manufacturing: The manufacturing sector accounts for approximately 16% of the Indian economy. It is dominated by industries like textiles, pharmaceuticals, and automobiles.
• Services: The service sector is the largest contributor to the Indian economy, with a share of around 55% in GDP. It comprises industries like IT, banking, and tourism.
• Construction: The construction sector is a major contributor to the Indian economy, contributing approximately 8% to GDP.
• Infrastructure: The infrastructure sector, which includes industries like power, telecommunications, and transportation, accounts for approximately 12% of the Indian economy.

The top contributors to the Indian economy are the service and manufacturing sectors, each contributing around 16-17% to the country's GDP. Agriculture also plays a crucial role, accounting for approximately 15% of the Indian economy.