Answer: 1951

Explanation:

The first Indian Prime Minister, Jawaharlal Nehru, presented the First Five-Year Plan to the Parliament of India. The First Five-year Plan was launched in 1951 which mainly focused on the development of the primary sector.

Answer: Second

Explanation:

Second Plan (1956 – 1961) The Mahalanobis Plan of development was adopted during the Second Five Year Plan. It was based on an economic development model developed by the Indian statistician Prasanta Chandra Mahalanobis. The plan attempted to evaluate the optimal allocation of funds among productive sectors in order to maximise economic growth of the country.