This information will help you. During the time of independence, agriculture was the most important contributor to Indian GDP. It contributed over 50% of GDP and employed over 80% of the population.
As time passed, the significance of agriculture declined in terms of contribution to GDP. Now, agriculture contributes about 15% to India’s GDP. Over 50% of the population is engaged in agriculture.
The
services sector was the second largest contributor to GDP at the time
of independence. It contributed about 30% to India’s GDP which
increased to about 55% currently. It is the largest sectoral
contributor to Indian GDP. It employs about 30% of the population.
This percentage keeps increasing. In the early 1990’s it employed
about 22% of the population.
I hope it helps, Regards.