Prasanta Chandra Mahalanobis was born on June 29th, 1893, to Probodh Chandra Mahalanobis and Nirodbashini Devi. He was the eldest of 6 children and showed great promise from a young age. Mahalanobis finished his schooling at the prestigious Brahmo Boys School, founded by his grandfather Guru Charan Mahalanobis in 1904. He further pursued physics at Presidency College. Mahalanobis met the renowned mathematical genius, Srinivasa Ramanujan, during his time at King’s College in Cambridge.
Early Life and Education
Upon returning to India, Mahalanobis began a career as a physics teacher at the Presidency College in 1922. He was a meteorologist at Alipore Observatory in Calcutta from 1922 to 1926. His passion for statistics led him to establish the Indian Statistical Institute (ISI) in 1932. The Institute began with a small group of statisticians and grew over time, becoming a prominent statistical research and education institution. Mahalanobis also launched the renowned journal, Sankhya: The Indian Journal of Statistics.
Contributions beyond academia
Mahalanobis’s contributions were beyond just academia. In 1950, he established the National Sample Survey, which was vital in collecting and analyzing data on various aspects of society. He also founded the Central Statistical Organization to coordinate statistical activities at a national level. His expertise in statistics got him a position in the Planning Commission of 1955, which he was a part of till 1967. Mahalanobis’s approach and deep understanding of statistical analysis played an important role in formulating India’s second five-year plan (1956-1961). It laid the foundation for the country’s industrialization and development.
Achievements
Among the many achievements of Mahalanobis, the most prominent one is his development of the “Mahalanobis distance”, a measure of comparison between two data sets. It was a revolutionary concept in the field of cluster analysis and classification in statistics. He also introduced innovative techniques like fractile graphical analysis, which allowed for a comprehensive comparison of socio-economic conditions among different groups. His analysis of the floods in Odisha in 1926 was groundbreaking and provided crucial insights that contributed to the construction of the Hirakud Dam on the Mahanadi River.
Architect of Indian economic planning
Prasanta Chandra Mahalanobis’s legacy as the architect of Indian economic planning is compelling. His contributions to the second-five-year plan emphasized industrialization and development, making way for a transformed India, prioritizing the growth of heavy industries and fostering a protected environment for indigenous businesses. Mahalanobis played a vital role in shaping India’s economic landscape. Through the challenges and adversities the plan faced, it marked a significant milestone in India’s history and paved the way for future economic advancements.
Impact on Statistics and Mathematics
Mahalanobis’s lasting influence on statistics and mathematics must be acknowledged. His analytical insights and research laid the foundation for econometrics in India. He established the Indian Econometric Society and became the first Indian elected member of the Econometric Society. His impact in this field led to the development of the Mahalanobis distance, which has applications in taxonomy, economics and geology.
Prasanta Chandra Mahalanobis will always be remembered as a visionary statistician, economist, and planner. His dedication to the pursuit of knowledge and his commitment to applying statistical methods for the better of our society serves as an inspiration to generations. As we remember Prasanta Chandra Mahalanobis, we must reflect on his impactful contributions and recognize statistics’ crucial role in our policy formation and socioeconomic planning.
