15 elections on record · INC dominant · 15 total
Thirumangalam is an Assembly constituency in Tamil Nadu. It has participated in 15 elections from 1962 to 2026. INC is the historically dominant party with 6 wins out of 15 elections.
| Year | Winner | Party | Votes | Vote % | Runner-up | Party | Margin |
|---|---|---|---|---|---|---|---|
| 2026 | Sedapatti M. Manimaran | DMK | 88291 | 38.22% | R. B. Udhayakumar | ADMK | 23807 |
| 2021 | R. B. Udhaya Kumar | ADMK | 100338 | 45.51% | M. Maniraman | DMK | 14087 |
| 2016 | Udhayakumar R.B | ADMK | 95864 | 46.99% | Jeyaram R | INC | 23590 |
| 2011 | Muthuramalingam M | AIADMK | 101494 | 55.55% | Manimaran M | DMK | 26367 |
| 2006 | K. R. Ramasamy | INC | 55198 | 47.11% | C. Animuthu | ADMK | 5253 |
| 2001 | K.R. Ramasamy | TMC(M) | 43536 | 39.12% | Jones Russo | IND | 2304 |
| 1996 | Kr. Ramasamy | TMC | 68837 | 61.77% | D. Sakthivel | INC | 51400 |
| 1991 | Ramasamy Ambalam | INC | 65723 | 62.92% | Sornalingam | JD | 30536 |
| 1989 | Kr. Eramasamy Ambalam | INC | 38161 | 35.56% | S. Murugappan | DMK | 1850 |
| 1984 | Sornalingam. K. | INC | 47618 | 47.8% | Gnanaprakasam. M. | IND | 18817 |
| 1980 | Anguchamy. S. | AIADMK | 34392 | 37.96% | Ramanathan Thevar. A. T. M. | INC | 1986 |
| 1977 | KR. RM. Kariya Manickam Ambalam | INC | 32386 | 36.75% | S. Anguchamy | AIADMK | 3736 |
| 1971 | M. S. K. Sathyendran | DMK | 40690 | 65.05% | Balagangadharan R. | INC | 21041 |
| 1967 | T. Thangappan | DMK | 35880 | 56.82% | S. R. Sethupathy | INC | 8610 |
| 1962 | A. B. Balagan | INC | 46160 | 67.75% | R. V. Ananthakrishnan | CPI | 32339 |