| Mettur Constituency |
| Mettur Assembly Election Result 2021 | ||
| Candidate Names | Party | Votes |
| Sadhasivam | PMK (Won) | 97055 |
| S Seenivasa perumal | DMK | 96399 |
| M. Ramesh Aravind | DMDK | 1874 |
| ANUSIYA | MNM | 4605 |
| Manikandan | NTK | 9109 |
| Mettur Constituency Population - 2021 | |||
| Male | Female | Transgender | Total |
| 1,45,073 | 1,40,687 | 7 | 2,85,767 |
| Tamil Nadu Ministers List - 2021 |
| Full Details of Tamil Nadu Ministers 2021 |
| 2016 Election Result | ||
| Name | Party | Votes |
| G.K. Mani | PMK | 49939 |
| Mr. Semmalai | ADMK(Won) | 72751 |
| Parthiban.S.R | DMK | 66469 |
| 2011 Election Result | ||
| Name | Party | Votes |
| Parthiban.S.R (Winner) | DMDK | 75,672 |
| Mani.G.K (Runner Up) | PMK | 73,078 |
| Mettur Constituency | ||
| MLA Name | Duration | Parties |
| K. S. Ardhanareeswara Gounder | 1957 | INC |
| K. S. Ardhanareeswara Gounder | 1962 | INC |
| M. Surendran | 1967 | PSP |
| M. Surendran | 1971 | PSP |
| K. P. Nachimuthu Gounder | 1977 | ADMK |
| K. P. Nachimuthu Gounder | 1980 | ADMK |
| K. P. Nachimuthu Gounder | 1984 | ADMK |
| N. Sreerangan | 1989 | CPI |
| S. Sundarambal | 1991 | ADMK |
| P. Gopal | 1996 | DMK |
| S. Sundarambal | 2001 | ADMK |
| G. K. Mani | 2006 | PMK |
| S. R. Parthiban | 2011 | DMDK |
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