1. Contribution in national income:

• At the time of independence, agriculture sector dominated in India because India was an agriculture oriented country from the very beginning.
• After the development of industries, the agriculture economy was reduced and the contribution of industries increased in comparison with agriculture.
• Government has put various systematically planned efforts to boost the economy which in turn has increased share of industries in national income.
• In the year 1951, industrial sector had contributed 16.6% in national income. This rose to 27% (at constant prices) in the year 2013-14.

2. Employment:

• India is a highly populated nation. The country is not able to provide employment to its entire labour force. However, India has increased employment opportunities with the planned efforts in the development of industrial sectors.
• Through the planned effort in industrial sector, India has increased employment opportunities.
• In the year 1951, 10.6% labourers were employed in industries. It rose to 24.3% in 2011-12.
• There was a rapid increase in small scale industries which mainly work on labour intensive methods. With increase in small scale industries employment problem has been solved to a great extent. This can be further increased by proper planning.

3. Export income:

• As the agriculture sector increased it also led to the development of industrial sector. When the volume of industrial production increased, the surplus started getting exported. This earned us export income. Foreign exchange also helps to import products that are scarce.
• In 2013-2014, about 2/3rd of export income was earned through industries.