The article explores how national income affects savings and investment in India. It looks at how the total income of all people in the country has grown over the past sixty years. The researchers studied how this growth impacts the amount of money people save and invest. They also examined how the average income per person has changed over time. The findings show that as national income increases, people tend to save and invest more money. This suggests that the overall economic condition of a country can influence how much people save and invest in the long run.