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Aryabhatta was the first in the line of great mathematician-astronomers from the classical age of Indian mathematicsand Indian astronomy. His most famous works are the

ryabhaya and theArya-siddhanta.

Aryabhatta mentions in theAryabhatiya that it wascomposed 3,630 years into the Kali Yuga, when he was 23years old. This corresponds to 499 CE, and implies that hewas born in 476 CE.

It is fairly certain that, at some point, he went toKusumapura for advanced studies and that he lived there forsome time.

Aryabhatta is the author of several treatises on mathematicsand astronomy, some of which are lost. His major work,

Aryabhatiya, a compendium of mathematics andastronomy, was extensively referred to in the Indianmathematical literature and has survived to modern times.The mathematical part of the Aryabhatiya covers arithmetic,algebra, plane trigonometry, and spherical trigonometry. Italso contains continued fractions, quadratic equations,

sums-of-power series, and a table of sines.


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Birbal Sahni (14 November 1891 10 April 1949) was an Indianpaleobotanist who studied the fossils of the Indian subcontinent, was also ageologist who took an interest in archaeology.

The third son of Ishwar Devi and Lala Ruchi Ram Sahani, Birbal Sahni wasborn in Behra, Saharanpur District, West Punjab, on 14 November 1891.Among the frequent guests of his parents were Motilal Nehru, GopalKrishna Gokhale, Sarojini Naidu, and Madan Mohan Malaviya.

In 1917, Sahni joined Professor Seward to work on a 'Revision of IndianGondwana plants' (1920, Palaeontologica Indica). In 1919 he briefly worked

in Munich under the German plant morphologist Goebel. In 1920 he marriedSavitri Suri, daughter of Sunder Das Suri who was an Inspector of Schoolsin Punjab.

Sahni was recognized by several academies and institutions in India andabroad for his research. He was elected a Fellow of the Royal Society of

London (FRS) in 1936, the highest British scientific honor, awarded for thefirst time to an Indian botanist.


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Born

10 September 1920(age 91)Hadagali, Kingdom ofMysore,British India

Nationality India

Fields Statistician

Institutions

Indian StatisticalInstituteCambridge UniversityPenn State University

Known for

CramrRao boundRao

Blackwell

theoremorthogonal arrays

Notable awards

Padma VibhushanNational Medal ofScienceS. S. Bhatnagar Prize

Guy Medal (Silver1965, Gold 2011)


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Born

7 November 1888Thiruvanaikoil,Tiruchirappalli, Madras

Presidency, India

Died21 November 1970 (aged 82)Bangalore, Karnataka, India

Nationality Indian

Fields Physics

Institutions

Indian Finance DepartmentUniversity of CalcuttaIndian Association for theCultivation of ScienceIndian Institute of Science

Known for Raman effect

Notable awards

Knight Bachelor (1929)Nobel Prize in Physics (1930)Bharat Ratna(1954)

Lenin Peace Prize (1957)


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G. N. Ramachandran was one of those scientists who have made Indiaproud by their research. His full name was GopalasamudramNarayana Iyer Ramachandran. He was the first person to propose atriple-helical model for the structure of collagen. He also made othermajor contributions in biology and physics.

Professor Ramachandran was born on October 8, 1922, in the town of

Ernakulam, Kerala, India. He was the son of G.R. Narayana Ayer andLakshmi Ammal. His father was a Professor of Mathematics at a localcollege and thus had considerable influence in shapingRamachandran's interest in mathematics. He obtained his Bachelordegree in science from St. Joseph's College in 1942. He also got a

masters degree in Physics from Madras University with his thesissubmitted from Bangalore. He subsequently received his D. Sc. degree


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Homi J. Bhabha was the eminent scientistwho played a key role in the developmentof the Indian atomic energy program. . He

was born on October 30, 1909 in a Parsifamily of Mumbai. He was the son ofJehangir Hormaji Bhabha and MeherbaiFramji Panday. His father was a Oxford-educated barrister. Bhabha received hisearly education at Bombays Cathedral

Grammar School and Royal institute ofScience
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Presentation By :-

Udit Patel (50)

Rahul Kumar Beck (55)

Shiva Dubey (56)

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