The trends in the Indian national income can be analyzed based on the following information from the search results:

• The estimates of national and per capita income are taken at some constant base year prices for the purpose of comparing national income and per capita incomes over different years. This is done to eliminate the effect of any change in the price level of the country.
• Indias per capita net national income (at current prices) for 2022-23 stands at INR 172,000, according to estimates from the National Statistical Office (NSO). This marks an almost 100 percent increase from the per capita income in 2014-15 – INR 86,647 – when the Narendra Modi government first came to power. Per capita incomes dipped during the outbreak of COVID-19, but picked up in 2021-22 and 2022-23.
• Indias gross national income at current prices was INR 222.5 trillion in FY 2022-23, according to estimates from Statista.
• Indias economy has witnessed a rapid growth of the tertiary sector, which includes services such as banking, insurance, trade, transport, communication, etc. /recent_issues_pdf/2015/December/December_2015_1448965077__69.pdf).

Based on the above information, the following trends in the Indian national income can be observed:

• The national income has been increasing over the years, with a rapid growth in the tertiary sector/recent_issues_pdf/2015/December/December_2015_1448965077__69.pdf).
• The estimates of national and per capita income are taken at some constant base year prices for the purpose of comparing national income and per capita incomes over different years.
• Indias per capita net national income (at current prices) has almost doubled from 2014-15 to 2022-23.
• Indias gross national income at current prices has been increasing over the years.

Therefore, the trends in the Indian national income show a steady increase over the years, with a rapid growth in the tertiary sector. The per capita net national income has almost doubled from 2014-15 to 2022-23, and the gross national income at current prices has been increasing over the years.