15 elections on record · DMK dominant · 15 total
Thiruvarur is the revered home constituency of M. Karunanidhi — he won here from 1967 to 2016 without interruption. In 2016, he polled 1,21,473 votes (61.73%). The seat now belongs to DMK's Kalaivanan.
| Year | Winner | Party | Votes | Vote % | Runner-up | Party | Margin |
|---|---|---|---|---|---|---|---|
| 2026 | Kalaivanan Poondi K. | DMK | 93408 | 42.87% | Veeramani V. | TVK | 18148 |
| 2021 | K. Poondi Kalaivanan | DMK | 108906 | 52.29% | A. N. R. Panneerselvam | ADMK | 51174 |
| 2016 | Kalaignar M Karunanidhi | DMK | 121473 | 61.73% | Pannerselvam R | ADMK | 68366 |
| 2011 | M. Karunanidhi | DMK | 109014 | 62.96% | Rajendran M | AIADMK | 50249 |
| 2006 | K. N. Sekaran | DMK | 95687 | 50.42% | Sridhar Vandayar | ADMK | 24762 |
| 2001 | K.N. Sekaran | DMK | 61254 | 47.30% | T.K. Rangarajan | CPI(M) | 10373 |
| 1996 | K. Durai | DMK | 78692 | 62.60% | T. Rathinavel | ADMK | 46753 |
| 1991 | T. Rathinavel | ADMK | 69596 | 59.76% | Pappa Umanath | CPI(M) | 26522 |
| 1989 | Pappa Umanath | CPI(M) | 54814 | 43.67% | V. Swaminathan | INC | 22209 |
| 1984 | M. Guruswamy Alias Annadasan | AIADMK | 47900 | 47.84% | Pappa Umanath | CPI(M) | 4479 |
| 1980 | Gurusamy Alias Annadasan. N. | AIADMK | 51012 | 56.24% | Murugesan. K. S. | DMK | 11965 |
| 1977 | K. S. Murugesan | DMK | 24594 | 32.06% | V. Swaminathan | INC | 852 |
| 1971 | M. Sathiamoorthy | INC | 34680 | 46.8% | Subbaiah Kr. | CPI | 1287 |
| 1967 | R. V. Thondaiman | INC | 45342 | 62.07% | Thiagarajan | DMK | 20087 |
| 1962 | V. Arunachala Thevar | DMK | 35151 | 44.39% | R. Srinivasa Iyer | INC | 6345 |