Answer:
The 1950s saw an advanced interest of the people towards the industrial development. During this time, the core industries are coal, oil, and electricity. The reason for this is that these industries were put on schedule A by govt. means they were out of bound of private investors. In this scene, private participation was as it is limited by licensing, quota and permit. This step was also prioritised by industrial policy of 1956. These industries were also built in the rural areas, in order to avoid industrial disparity with the urban areas.