The decreasing order of the contribution of these sectors to the Gross Domestic Product (GDP) at factor cost at constant prices (2000-01) in the Indian economy is as follows:
1. Trade, Hotels, Transport, and Communication: This sector includes activities related to trade, such as wholesale and retail trade, as well as hotels, restaurants, transportation, and communication services. It plays a significant role in the Indian economy and contributes a substantial portion to the GDP.
2. Financing, Insurance, Real Estate, and Business services: This sector encompasses activities related to financial services, insurance, real estate, and business services. It includes banking, insurance, real estate development, professional services, and other related activities. This sector also makes a significant contribution to the Indian economy.
3. Agriculture, Forestry, and Fishing: This sector includes activities related to agricultural production, forestry, and fishing. Agriculture has traditionally been an essential sector in the Indian economy, employing a large portion of the population and contributing to the GDP. However, its relative contribution to the GDP has decreased over time due to the growth of other sectors.
4. Manufacturing: The manufacturing sector involves the production of goods through various industrial processes. While manufacturing is an important sector, its contribution to the Indian economy has been relatively lower compared to the other sectors mentioned above.
Therefore, the correct order of decreasing contribution to the GDP at factor cost at constant prices (2000-01) is: 3, 4, 1, 2.