| Thondamuthur Constituency |
| Thondamuthur Assembly Election Result 2021 | ||
| Candidate Names | Party | Votes |
| S.P.Velumani | ADMK (Won) | 124225 |
| Karthikeya Sivasenapathy | DMK | 82595 |
| S.R.Sathiskumar | AMMK | 1235 |
| Shajahan | MNM | 11606 |
| Kaliarasi | NTK | 8042 |
| Thondamuthur Constituency Population - 2021 | |||
| Male | Female | Transgender | Total |
| 1,60,579 | 1,63,398 | 76 | 3,24,053 |
| Tamil Nadu Ministers List - 2021 |
| Full Details of Tamil Nadu Ministers 2021 |
| 2016 Election Result | ||
| Name | Party | Votes |
| SP Velumani | ADMK (WON) | 109519 |
| KOVAI SYED @ SYED MOHAMMED M.A | MMK | 45478 |
| KARUMUTHU THIYAGARAJAN M. | BJP | 19043 |
| 2011 Election Result | ||
| Name | Party | Votes |
| Velumani.S.P (Winner) | AIADMK | 99,886 |
| Kandaswamy.M.N (Runner Up) | INC | 46,683 |
| Thondamuthur Constituency | ||
| MLA Name | Duration | Parties |
| Palanisami Gounder | 1952 | INC |
| V. Ellama Naidu | 1962 | INC |
| R. Manickavasakam | 1967 | DMK |
| R. Manickavasakam | 1971-77 | DMK |
| K. Maruthachalam | 1977-80 | ADMK |
| Chinnaraj | 1980-84 | ADMK |
| C. Aranganayagam | 1984-89 | ADMK |
| U.K. Vellingiri | 1989-91 | CPI M |
| C. Aranganayagam | 1991-96 | ADMK |
| C.R. Ramachandran | 1996-01 | DMK |
| S.R. Balasubramoniyan | 2001-06 | TMC |
| M. Kannappan | 2006-09 | MDMK |
| M.N. Kandaswamy | 2009-2011 | INC |
| S. P. Velumani | 2011-Incumbent | ADMK |
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