| Omalur Constituency |
| Omalur Assembly Election Result 2021 | ||
| Candidate Names | Party | Votes |
| R.Mani | ADMK (Won) | 142488 |
| R.Mohan Kumaramangalam | INC | 87194 |
| K.K.Madheshwaran | AMMK | 1202 |
| V. SRINIVASAN | MNM | 2930 |
| Rasa | NTK | 9416 |
| Omalur Constituency Population - 2021 | |||
| Male | Female | Transgender | Total |
| 1,51,085 | 1,43,623 | 4 | 2,94,712 |
| Tamil Nadu Ministers List - 2021 |
| Full Details of Tamil Nadu Ministers 2021 |
| 2016 Election Result | ||
| Name | Party | Votes |
| VETRIVEL.S | ADMK(Won) | 89,169 |
| AMMASI.S | DMK | 69,213 |
| TAMILARASU.A | PMK | 48,721 |
| 2011 Election Result | ||
| Name | Party | Votes |
| Krishnan.C (Winner) | ADMK | 1,12,102 |
| Tamizharasu.A (Runner UP) | PMK | 65,558 |
| Omalur Constituency | ||
| MLA Name | Duration | Parties |
| P. Rathinaswami Pillai | 1952 | Independent |
| C. Palani | 1967 | DMK |
| V. Selladurai | 1971 | DMK |
| M. Sivaperumal | 1977 | ADMK |
| M. Sivaperumal | 1980 | ADMK |
| Anbalagan | 1984 | INC |
| C. Krishnan | 1989 | ADMK |
| C. Krishnan | 1991 | ADMK |
| R. R. Sekaran | 1996 | TMC |
| S. Semmalai | 2001 | ADMK |
| A. Thamizharasu | 2006 | PMK |
| C. Krishnan | 2011 | ADMK |