Alladi Ramakrishnan (9 August 1923 – 7 June 2008) was an Indian physicist and the founder of the Institute of Mathematical Sciences (Matscience) in Chennai.

He made contributions to stochastic process, particle physics, algebra of matrices, special theory of relativity and quantum mechanics.

[2] After completing his studies at Presidency College, Ramakrishnan started working with Homi Bhabha at the Tata Institute of Fundamental Research (TIFR).

[3] After his return to Madras (Chennai) from the Institute for Advanced Study in 1958, Ramakrishnan began a Theoretical Physics Seminar in his family home Ekamra Nivas (house with a mango tree).

In 1960, nobel laureate Niels Bohr visited India and was impressed by the small group of students trained by Ramakrishnan.

[3][4] With Bohr's recommendation and with support from the then prime minister of India, Jawaharlal Nehru and C.Subramaniam, Alladi Ramakrishan set out to create the institute.

In the last decades of his life, several high school students and undergraduates came to his home in Madras to learn with him, subsequently pursuing higher studies in the United States towards a career of research.