| Thirumangalam Constituency |
| Thirumangalam Assembly Election Result 2021 | ||
| Candidate Names | Party | Votes |
| R.B.Udhayakumar | ADMK (Won) | 101338 |
| Manimaran | DMK | 86251 |
| RAMKUMAR | MNM | 2775 |
| Saaraal | NTK | 11593 |
| Thirumangalam Constituency Population - 2021 | |||
| Male | Female | Transgender | Total |
| 1,34,647 | 1,42,146 | 9 | 2,76,802 |
| Tamil Nadu Ministers List - 2021 |
| Full Details of Tamil Nadu Ministers 2021 |
| 2016 Election Result | ||
| Name | Party | Votes |
| RB Udhayakumar | ADMK(WON) | 95,864 |
| R. Jayaram | TNC | 72,274 |
| Srinivasan.M | DMDK | 20,589 |
| 2011 Election Result | ||
| Name | Party | Votes |
| M. Muthuramalingam (Winner) | ADMK | 101494 |
| Manimaran M (Runner UP) | DMK | 75,127 |
| Thirumangalam Constituency | ||
| MLA Name | Duration | Parties |
| K. Rajaram | 1952 | INC |
| Thiruvengadam | 1957 | Independent |
| Thiruvengadam | 1962 | INC |
| N. S. V. Chithan | 1967 | INC |
| M. C. A. Rethinasamy Thevar | 1971 | AIFB |
| P. T. Saraswathy | 1977 | ADMK |
| N. S. V. Chithan | 1980 | INC |
| N. S. V. Chithan | 1984 | INC |
| R. Saminathan | 1989 | DMK |
| T. K. Radhakrishnan | 1991 | ADMK |
| M. Muthuramalingam | 1996 | DMK |
| K. Kalimuthu | 2001 | ADMK |
| Veera Elavarasu | 2006 | MDMK |
| Latha Athiyaman | 2009 | DMK |
| M. Muthuramalingam | 2011 | ADMK |
JB Soft System