Which of the following plan led to the policy of the Indian government controlling the commanding heights of the economy?

Second Five Year Plan

The decision to develop the Indian economy on socialist lines led to the policy of the government controlling the commanding heights of the economy, as the Second Five Year plan put it. This meant that the government would have complete control of those industries that were vital for the economy. The policies of the private sector would have to be complimentary to those of the public sector, with the public sector leading the way.