Under whose leadership was the Second Five Year Plan (1956-61) drafted?

P. C. Mahalanobis.

P.C. Mahalanobis (1893-1972) was an esteemed scientist and statistician of international renown.
He founded the Indian Statistical Institute in 1931.
Mahalanobis played a key role as the architect of India's Second Five-Year Plan.
He advocated for rapid industrialization and emphasized the active involvement of the public sector in driving economic development.
He championed the importance of industrialization as a means to propel India's progress and transformation.
Mahalanobis’ contributions showcased his vision for a robust public sector and its pivotal role in India's developmental journey.