Eminent physicist Daulat Singh Kothari was born on 6 July 1906 in Udaipur city of Rajasthan district. He received his M.Sc. in Physics from the University of Allahabad. And in 1933 Ph.D. from the University of Cambridge. Of Daulat Singh Kothari was also the head of Physics of the University of Delhi from 1934–35. His way of teaching was so easy that the students were eager to go to his classes. After that he was the Scientific Advisor to the Defense Minister in the Ministry of Defense.
He held the post of Scientific Advisor from 1948 to 1961. He was the Chairman of UGC from 1961 to 1972. He was the Chancellor of Jawaharlal University in 1981. Throughout his life, he held a very responsible position. Dr. Kothari was a well-known astrophysicist. He did a lot of research work on statistics thermodynamics and whiteness. They showed that atoms can be ionized only by pressure.
Daulat Singh Kothari wrote a book related to nuclear explosion and their effects. This book was published in many languages. He also got many scientific papers published. Dr. Kothari was also the Vice President and President of the Indian National Science Academy. In 1962, Dr. Kothari was awarded the Padma Bhushan. In 1966, he was also awarded the Bhatnagar Prize in peace. In 1973, he was awarded the Padma Vibhushan. In 1978, he received the Meghnath Saha Award.
Daulat Singh Kothari held high positions all his life and died in 1983. In 2011, a stamp paper in his name was also removed in his honor. He was very fond of giving scientific speeches. His speeches were in very simple language. Daulat Singh Kothari was a well-known physicist of his time. There is also a Boys Hostel in the name of Delhi University and DS Kothari Research Center was established in Delhi University in his name.