Alathur — lok sabha
K.Radhakrishnan (CPI(M)) won by 20,111 votes
CPI(M) won by 20,111 votes
| Name | Party | Votes |
|---|---|---|
| K.Radhakrishnan · CPI(M) | CPI(M) | 4,03,447 |
| Ramya Haridas · INC | INC | 3,83,336 |
| Dr T N Sarasu · BJP | BJP | 1,88,230 |
| None of the Above · NOTA | NOTA | 12,033 |
Vote share (top four)