15 elections on record · DMK dominant · 15 total
Chengam is an Assembly constituency in Tamil Nadu. It has participated in 15 elections from 1962 to 2026. DMK is the historically dominant party with 7 wins out of 15 elections.
| Year | Winner | Party | Votes | Vote % | Runner-up | Party | Margin |
|---|---|---|---|---|---|---|---|
| 2026 | S. Velu | ADMK | 87802 | 36.15% | K. Bharatidhasan | TVK | 13278 |
| 2021 | M. P. Giri | DMK | 108081 | 48.26% | M. S. Nainakannu | ADMK | 11570 |
| 2016 | Giri M.P | DMK | 95939 | 45.60% | Dinagaran M | ADMK | 12691 |
| 2011 | Sureshkumar T | DMDK | 83722 | 46.95% | Selvaperunthagai K | INC | 11497 |
| 2006 | Saba Rajendran | DMK | 57403 | 46.16% | R. T. Sabapathi Mohan | MDMK | 12080 |
| 2001 | M.C. Sampath | AIADMK | 56349 | 50.93% | V.C. Shanmugham | DMK | 7382 |
| 1996 | A. Mani | DMK | 57977 | 53.84% | M.C. Dhamodaran | ADMK | 25383 |
| 1991 | C. Damotharan | ADMK | 57373 | 59.61% | C. Govindarajan | CPI(M) | 35108 |
| 1989 | C. Govindarajan | CPI(M) | 26233 | 31.88% | N. V. Jayaseelan | IND | 11429 |
| 1984 | Anbarasan Alias Ramalingam | AIADMK | 48018 | 56.71% | Govindarajan | CPI(M) | 21377 |
| 1980 | Krishnamoorthi. V | DMK | 40526 | 55.17% | Govindarajan. C | CPI(M) | 12111 |
| 1977 | C. Govindarajan | CPI(M) | 23077 | 32.75% | V. Krishnamoorthy | DMK | 4817 |
| 1971 | P. Ponchokkalingam | DMK | 35750 | 50.33% | R. Gopalkrishnan | INC | 1679 |
| 1967 | R. Kanagasabai Pillai | INC | 34911 | 49.18% | P. Ponchockalingam | DMK | 1555 |
| 1962 | T. Chinnasamy | DMK | 25084 | 48.76% | P. Vedamanickam | INC | 6247 |