Which of the following statements about P.C. Mahalanobis is not true?

The correct answer is Option 2 - He served as the Indian Statistical Institute's director for over five decades.

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.
He passed away in 1972.

(Since he passed away in 1972, so he cant serve as the institute's director for over five decades which was formed in 1931.)