20. TRIVANDRUM
Total Votes: 1116834
Votes Polled: 721087
Invalid Votes: 16679
| Name of the Candidate | Party | Votes | Percentage |
| K. V. SURENDRANATH | CPI | 312622 | 44.38 |
| A. CHARLES | INCI | 291820 | 41.43 |
| K. RAMAN PILLAI | BJP | 74904 | 10.63 |
| P. K. RAJAN | BSP | 6348 | 0.90 |
| NEMOM SALAHUDEEN | IND | 6184 | 0.88 |
| N. HARIHARAN | JP | 4261 | 0.60 |
| CHENTHAMARAKSHAN NAIR | IND | 2693 | 0.38 |
| P. PEER MOHAMMED | IND | 1795 | 0.25 |
| K. P. KARUNAKARAN NAIR | IND | 1125 | 0.16 |
| A. V. K. MOOSAD | IND | 822 | 0.12 |
| VARKALA SAINUDEEN SAHIB | IND | 789 | 0.11 |
| P. S. VASAVAN PILLAI | IND | 591 | 0.08 |
| S. T. EBNEZER | IND | 454 | 0.06 |
| Total | 704408 | 100.00 | |
Mr. K. V. SURENDRANATH (CPI) elected with a margin of 20802 votes.