| Thirumudi N. Sethuraman | |
| Order1: | Member of Parliament (Lok Sabha) for Pondicherry |
| Term Start1: | 1967 |
| Term End1: | 1971 |
| Primeminister1: | Indira Gandhi |
| Successor1: | Mohan Kumaramangalam |
| Order2: | Deputy Mayor of Puducherry |
| Term Start2: | 1965[1] |
| Term End2: | 1967 |
| Order3: | Member, Puducherry Legislative Assembly |
| Term Start3: | September 1955[2] |
| Term End3: | November 1958 |
| Term Start4: | October 1963 |
| Term End4: | August 1964 |
| Birth Date: | 24 January 1923 |
| Birth Place: | Pondicherry, India |
| Nationality: | Indian |
| Party: | Indian National Congress |
| Profession: | Politician |
| Spouse: | Marie Therese |
| Native Name: | திருமுடி.ந.சேதுராமன் |
| Smallimage: | President Rajendra Prasad.jpg |
Thirumudi N. Sethuraman (ta|திருமுடி.ந.சேதுராமன்) (24 January 1923 - 23 December 1979) was an Indian politician. He participated in the Indian independence movement. In 1946, he made a turning point in the history of the freedom movement in Puducherry (then called Pondicherry) by forming the French India National Congress along with J. Savarinathan, Ambadi Narayanan, Govinda Pathar and M. A. Annamalai.[3] It was succeeded by French India Students Congress.[4] He is affectionately known as T. N. Sethuraman Chettiar. He served as the Deputy Mayor of Pondicherry. In 1967, he was elected as the Member of Parliament from Puducherry (Lok Sabha constituency).[5] He ran again in 1971, but lost to Mohan Kumaramangalam.
He was a scholar and a great philanthropist but also a man of simplicity. Notably, he was the political guru for many of the present politicians of Puducherry.
To honor him, a street was named after him.
Thirumudi N. Sethuraman was born on 24 January 1923 in Puducherry to Nataraja Chettiar and Kusalambal Ammaiyar. His parents believed he was born by the grace of the Lord at Rameswaram, following the loss of his elder brother at the age of 4. He was originally named 'Sethu Ramasamy,' inspired by the belief in the Sethu Dam built by Lord Ram in Rameswaram. He later became known as 'Sethuraman,' with 'Thirumudi' being his family name. He had a younger brother, Velmurugan, and a younger sister, Rasambal. Their family resided in a traditional Chettinad house on Ananda Rangapillai Street in Puducherry, a home where they felt the presence of Lord Lakshmi and Lord Saraswati.
His family was well known in the city. They were wealthy and famous in Puducherry. His ancestor Arumuga Chettiar and his descendants were in Tharangambadi and were having trade with Dutch. They were into trade of Dye, Tobacco, Soap etc. Their trade expanded to Mauritius. They had farmlands and two Bungalows in Mauritius. They have built a temple for Lord Shiva in Mauritius which is still existing. Later they gave their farmland for lease to 'Helios Malaka Company'. In meanwhile they got contact with French East India Company and shifted to Puducherry where they continued their business. One of them was 'Padangu Narayanasamy Chettiar', a philanthropist who was appreciated by M. Z. Savarayalounayagar in Recueil de chants tamouls.[6]