14 elections on record · ADMK dominant · 14 total
Kadayanallur is an Assembly constituency in Tamil Nadu. It has participated in 14 elections from 1962 to 2026. ADMK is the historically dominant party with 5 wins out of 14 elections.
| Year | Winner | Party | Votes | Vote % | Runner-up | Party | Margin |
|---|---|---|---|---|---|---|---|
| 2026 | T. M. Rajendran | DMK | 79832 | 35.97% | C. Krishnamurali | ADMK | 6253 |
| 2021 | C. Krishnamurali | ADMK | 88474 | 43.08% | K. A. M. Muhammed Abubacker | IUML | 24349 |
| 2016 | K. A. M. Muhammed Abubacker | IUML | 70763 | 37.49% | Sheik Dawood S | ADMK | 1194 |
| 2011 | Chendur Pandian P | AIADMK | 80794 | 49.83% | S. Peter Alphonse | INC | 16086 |
| 2006 | R. Avudaiyappan | DMK | 49345 | 45.86% | R. Murugaiah Pandian | ADMK | 15731 |
| 2001 | M. Sakthivel Murugan | AIADMK | 43021 | 48.04% | R. Avudaiappan | DMK | 4020 |
| 1996 | R. Avudaiappan | DMK | 46116 | 48.89% | R. Murugaiah Pandian | ADMK | 19689 |
| 1991 | R. Murugaiah | ADMK | 57433 | 65.33% | S. Chellappa | CPI(M) | 29214 |
| 1989 | K. Ravi Arunan | INC | 31337 | 34.17% | R. Murugiah Pandian | ADK(J) | 4103 |
| 1984 | Balasubramanian | AIADMK | 44707 | 54.75% | Nallasivan A. | CPI(M) | 8666 |
| 1980 | Easwarmoorthy | CPI(M) | 31262 | 47.39% | Sangumuthu Thevarm S. | INC | 4287 |
| 1977 | Easwaramurthy alias Sornam | CPI(M) | 23356 | 35.33% | R. Nallakannu | CPI | 1787 |
| 1971 | M. Kather Mohideen S. | IUML | 35470 | 56.73% | Shanmugavel C. | INC | 13685 |
| 1967 | M. M. P. Mohammed | Independent | 36123 | 55.04% | S. R. Reddiar | INC | 8124 |
| 1962 | — Pre-delimitation / data unavailable | ||||||