| Radhapuram Constituency |
| Radhapuram Assembly Election Result 2021 | ||
| Candidate Names | Party | Votes |
| M.Appavu | DMK (WON) | 82331 |
| Inbadurai | ADMK | 76406 |
| K. Jayapal | DMDK | 2432 |
| Jesudasan | NTK | 19371 |
| Radhapuram Constituency Population - 2021 | |||
| Male | Female | Transgender | Total |
| 1,32,615 | 1,37,247 | 12 | 2,69,874 |
| Tamil Nadu Ministers List - 2021 |
| Full Details of Tamil Nadu Ministers 2021 |
| 2016 Election Result | ||
| Name | Party | Votes |
| I. S. INBADURAI | ADMK(WON) | 69,590 |
| M. Appavu | DMK | 69,541 |
| S. KANI AMUDHA | BJP | 11,131 |
| Radhapuram Constituency | ||
| MLA Name | Duration | Parties |
| A. V. Thomas | 1957 | INC |
| N. Soundarapandian | 1962 | INC |
| N. Soundarapandian | 1967 | INC |
| V. Karthesan | 1971 | DMK |
| Y. S. M. Yusuf | 1977 | ADMK |
| E. Muthuramalingam | 1980 | GKNC |
| Kumari Ananthan | 1984 | GKNC |
| Ramani Nallathambi | 1989 | INC |
| Ramani Nallathambi | 1991 | INC |
| M. Appavu | 1996 | TMC M |
| M. Appavu | 2001 | Independent |
| M. Appavu | 2006 | DMK |
| S. Michael Rayappan | 2011 | DMDK |
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