| Thanjavur Constituency |
| Thanjavur Assembly Election Result 2021 | ||
| Candidate Names | Party | Votes |
| V.Arivudainambi | ADMK | 56523 |
| TKG Neelamegam | DMK (Won) | 103772 |
| Ramanathan | DMDK | 4246 |
| Sundaramohan | MNM | 9681 |
| Subhadevi | NTK | 17366 |
| Thanjavur Constituency Population - 2021 | |||
| Male | Female | Transgender | Total |
| 1,38,166 | 1,50,678 | 56 | 2,88,900 |
| Tamil Nadu Ministers List - 2021 |
| Full Details of Tamil Nadu Ministers 2021 |
| 2019 By Election Candidate List | ||
| Name | Party | Votes |
| Neelamegam | DMK (Won) | 88972 |
| Gandhi | ADMK | 54992 |
| Rengasamy | AMMK | 20006 |
| 2016 Election Result | ||
| Name | Party | Votes |
| Rengasamy.M | ADMK (won) | 1,02,062 |
| Anjugam Boopathy | DMK | 74,584 |
| 2011 Election Result | ||
| Name | Party | Votes |
| M. Rengasamy (Winner) | AIADMK | 75,415 |
| S.N.M.Ubayadullah (Runner UP) | DMK | 68,086 |
| Thanjavur Constituency | ||
| MLA Name | Duration | Parties |
| M. Marimuthu and S. Ramalingam | 1952 | INC and CPI M |
| A. Y. S. Parisutha Nadar | 1957 | INC |
| M. Karunanidhi | 1962 | DMK |
| A. Y. S. Parisutha Nadar | 1967 | INC |
| S. Natarajan | 1971 | DMK |
| S. Natarajan | 1977 | DMK |
| S. Natarajan | 1980 | DMK |
| Durai. Krishnamurthy | 1984 | INC |
| S. N. M. Ubayadullah | 1989 | DMK |
| S. D. Somasundaram | 1991 | ADMK |
| S. N. M. Ubayadullah | 1996 | DMK |
| S. N. M. Ubayadullah | 2001 | DMK |
| S. N. M. Ubayadullah | 2006 | DMK |
| M. Rengasamy | 2011 | ADMK |
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