15 elections on record · DMK dominant · 15 total
Rajapalayam is an Assembly constituency in Tamil Nadu. It has participated in 15 elections from 1962 to 2026. DMK is the historically dominant party with 6 wins out of 15 elections.
| Year | Winner | Party | Votes | Vote % | Runner-up | Party | Margin |
|---|---|---|---|---|---|---|---|
| 2026 | K. Jegadeshwari | TVK | 65548 | 35.81% | S. Thangapandian | DMK | 10605 |
| 2021 | S. Thangappandian | DMK | 74158 | 41.50% | K. T. Rajenthra Bhalaji | ADMK | 3898 |
| 2016 | S. Thangappandian | DMK | 74787 | 43.82% | A. A. S. Shyam | ADMK | 4802 |
| 2011 | K. Gopalsamy | AIADMK | 80125 | 53.8% | S. Thangappandian | DMK | 21432 |
| 2006 | Suba Thangavelan | DMK | 53600 | 45.01% | V. Sathiamoorthy | ADMK | 7556 |
| 2001 | S. Balakrishnan | TMC(M) | 51142 | 48.10% | S.P. Thangavelan | DMK | 6115 |
| 1996 | S.P. Thangavelan | DMK | 56031 | 53.23% | V. Sathiyamoorthy | ADMK | 19970 |
| 1991 | V. Sathiamoorthy | ADMK | 56552 | 55.65% | K. Kalimuthu | DMK | 29454 |
| 1989 | A. M. Ameeth Ibrahim | DMK | 32682 | 30.36% | S. Balakrishnan | INC | 409 |
| 1984 | A. Piranavanathan | DMK | 37399 | 39.81% | V. Sivathavilli Thevar | IND | 6702 |
| 1980 | S. Sathiamoorthy | AIADMK | 40246 | 51.41% | Abdul Cadir. T. S. O. | IND | 3236 |
| 1977 | R. C. Subramanian | AIADMK | 25690 | 36.56% | A. Piravanathan | DMK | 13391 |
| 1971 | Perumal A. R. | AIFB | 31499 | 51.33% | Muthuvel Serval M. | INC | 9324 |
| 1967 | A. R. Perumal | SWA | 28484 | 45.09% | P. M. Baskaran | INC | 1118 |
| 1962 | A. Chidambaranatha Nadar | INC | 37079 | 54.13% | M. C. Balan | DMK | 19761 |