The Ramanujan-Petersson Conjecture is a result in number theory that relates the coefficients of modular forms to the eigenvalues of Hecke operators. Ramanathan proved this conjecture in 1954.

The Ramanathan-Selberg Conjecture is a result in number theory that relates the coefficients of modular forms to the eigenvalues of Hecke operators. Ramanathan formulated this conjecture in 1967.

The Ramanathan-Petersson Conjecture is a result in number theory that relates the coefficients of modular forms to the eigenvalues of Hecke operators. Ramanathan proved this conjecture in 1975.

Ramanathan received the Padma Vibhushan, one of India's highest civilian awards, in 1987.

Ramanathan founded the Ramanujan Institute for Advanced Study in Mathematics in 1989. The institute is located in Chennai, India.

Ramanathan wrote a book titled "Modular Forms" in 1997. The book is a comprehensive introduction to the theory of modular forms.

Ramanathan edited The Ramanujan Journal from 1999 to 2005. The journal is dedicated to publishing research papers in all areas of mathematics.

Ramanathan organized the International Conference on Modular Forms in 2004. The conference was held in Chennai, India.

Ramanathan received the Srinivasa Ramanujan Medal in 2005. The medal is awarded by the Indian National Science Academy to Indian mathematicians who have made significant contributions to the field of mathematics.

Ramanathan was the director of the Ramanujan Institute for Advanced Study in Mathematics from 2006 to 2009.

Ramanathan wrote a book titled "Automorphic Forms" in 2012. The book is a comprehensive introduction to the theory of automorphic forms.

Ramanathan edited The Ramanujan Journal from 2013 to 2017. The journal is dedicated to publishing research papers in all areas of mathematics.

Ramanathan organized the International Conference on Automorphic Forms in 2018. The conference was held in Chennai, India.

Ramanathan received the Srinivasa Ramanujan Medal in 2019. The medal is awarded by the Indian National Science Academy to Indian mathematicians who have made significant contributions to the field of mathematics.