Agriculture is an important part of the Indian economy. At around 1,530,000 square kilometres (590,000 sq mi), India has the second-largest amount of arable land, after the US, with 52% of total land under cultivation. Although the total land area of the country is only slightly more than one third of China or the US, India's arable land is marginally smaller than that of the US, and marginally larger than that of China. However, agricultural output lags far behind its potential. The low productivity in India is a result of several factors. According to the World Bank, India's large agricultural subsidies are distorting what farmers grow and hampering productivity-enhancing investment. Over-regulation of agriculture has increased costs, price risks and uncertainty, and governmental intervention in labour, land, and credit are hurting the market. Infrastructure such as rural roads, electricity, ports, food storage, retail markets and services remain inadequate. The average size of land holdings is very small, with 70% of holdings being less than one hectare (2.5 acres) in size. Irrigation facilities are inadequate, as revealed by the fact that only 46% of the total cultivable land was irrigated as of 2016, resulting in farmers still being dependent on rainfall, specifically the monsoon season, which is often inconsistent and unevenly distributed across the country. In an effort to bring an additional two crore hectares (20 million hectares; 50 million acres) of land under irrigation, various schemes have been attempted, including the Accelerated Irrigation Benefit Programme (AIBP) which was provided ₹80,000 crore (₹800 billion) in the union budget. Farming incomes are also hampered by lack of food storage and distribution infrastructure; a third of India's agricultural production is lost from spoilage.
For a person working for a wage, their source of income is their job, or their labor (aka their time that they sell to someone). But you can own a house, and rent it out, and when your renters pay you renter every month, the source of that income check is your rental property, or your house. It would just be called rental income. If you have money in the bank in an account that pays interest, those interest payments are another source of income. We can say the source is interest payments, or we can identify the asset that is generating rent, and say your money in the bank that is generating “rent” (aka interest) is your source of income.