# Calyampudi Radhakrishna Rao received honorary doctorates from 18 countries and is also awarded the PADMAVIBHUSHAN

**Calyampudi Radhakrishna Rao received honorary doctorates from 18 countries and is also awarded the PADMAVIBHUSHAN**

C.R.Rao has received many awards like doctorates from 18 countries in 6 continents; he has written 14 books and published 400 research papers; he also received the prestigious Padmavibhushan award. This is the introduction of an Indian Scientist, C.R.Rao.

C.R.Rao Advanced Institute of Mathematics, Statistics and Computer sciences, and an international institute was inaugurated in the Central University of Hyderabad on 30^{th} December, 2009 on the name of an Indian scientist. The name of the scientist is Calyampudi Radhakrishna rao. On the same day Indian Postal Department has released a postal stamp with his picture. His name was given to the Hyderabad University Road. The receiver of Padmavibhusan, this man is still active at the age of 80.

C.R. Rao invented many formulae and theories in Statistics and received many awards. One of the prominent among them is the ‘US National Medal of Sciences’. American Statistical Association praised him saying that his researches influenced the Economics, Genetics, Anthropology, Geology, Demography and Biometry.

C.R. Rao is one of the prominent scientists of India and is recognized as one of the top ten scientists of India.

Calyampudi R. Rao was born on 10^{th} September, 1920 in Huvanna Hadagali in Karnataka state. He is the eighth of ten children. He was almost educated in Andhra Pradesh. He did his graduation from Mrs. A.V.N.College, Visakhapatnam. He did his MA from Andhra University in Maths and his marks in MA are an unbroken record till now. He did MA Statistics from Indian Statistical Institute under Calcutta Presidency College with a gold medal. He spent two years in Cambridge, UK, working in the Museum of Ethnology and Anthropology and earned a PhD from Kings College.

At the age of 25 he published a thesis ‘Theory of Estimation’. ‘The Cramer-Rao inequality’, ‘Fisher-Rao theorem’, Rao-Black Theorem, and Multi Variate Analysis are some of his famous discoveries. His experiments are useful even in medicine for determining the disease, organic evolution etc.

C.R.Rao worked in the Indian Statistical Institute for 4 decades. After retirement, he worked in Pittsburg, Pennsylvania Universities and research centers for 25 years. His books were translated to many other languages. He received 31 honorary doctorates from 18 countries and is also a member in 8 academies in various countries. Presently he is an editor to an Indian Statistical magazine, ‘Saankhya’.