What are the changes in the national income of India in the last decades?

In the year 1950- 1951, the share of primary sector in GDP was 55.8% and the secondary sector was only 15.2 %. The share of the primary sector fell to 26% in the year 2001, and the secondary sector increased to 22% in the same year. The industrial sector however expanded and increased to 22% in the year 2001 and eventually to 52% in 2001. This was mainly due to the increase in sectors of transport communication, finance, trade, etc.
The changing structure of national income indicate industrialization at a slow pace within the industrial sector there also certain changes such as it treated in favour of capital goods industry.
Another aspect of India's national income trend is the contribution of the public sector. As per the latest trends primary sector contributes 2.7 percent, the secondary sector contributes 4.9 percent, and the tertiary sector contributes 5.8 percent.