| Athoor Constituency |
| Athoor Assembly Election Result 2021 | ||
| Candidate Names | Party | Votes |
| I.Periyasamy | DMK (Won) | 165809 |
| Tilaga Bama | PMK | 30238 |
| Selvakumar | AMMK | 3017 |
| P.Sivasakthivel | MNM | 3241 |
| Simon Justin | NTK | 17168 |
| Athoor Constituency Population - 2021 | |||
| Male | Female | Transgender | Total |
| 1,39,982 | 1,50,690 | 26 | 2,90,698 |
| Tamil Nadu Ministers List - 2021 |
| Full Details of Tamil Nadu Ministers 2021 |
| 2016 Election Result | ||
| Name | Party | Votes |
| PERIYASAMY I | DMK (WON) | 121738 |
| VISWANATHAN R NATHAM | ADMK | 94591 |
| PACKIYA SELVARAJ M | DMDK | 3741 |
| 2011 Election Result | ||
| Name | Party | Votes |
| Periyasamy.I (Winner) | DMK | 1,12,751 |
| Balasubramani.S (Runner Up) | DMDK | 58,819 |
| Athoor Constituency | ||
| MLA Name | Duration | Parties |
| T.S.Soundram | 1952 | INC |
| M. A. B. Arumugasamy Chettiar | 1957 | INC |
| V. S. S. Mani | 1962 | DMK |
| V. S. S. Mani Chettiyar | 1967 | DMK |
| A.M.T Nachiappan | 1971-77 | DMK |
| A. Vellaisamy | 1977-80 | ADMK |
| A. Vellaisamy | 1980-84 | ADMK |
| V.R. Nedunchezhiyan | 1984-89 | ADMK |
| I. Periasamy | 1989-91 | DMK |
| S.M. Durai | 1991-96 | ADMK |
| I. Periasamy | 1996-01 | DMK |
| P.K.T. Natarajaan | 2001-06 | ADMK |
| I. Periasamy | 2006-2011 | DMK |
| I. Periasamy | 2011-Incumbent | DMK |
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